diff --git a/Gemfile.lock b/Gemfile.lock
index 901aa706..6eb90b53 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,7 +1,7 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    ZenTest (4.11.0)
+    ZenTest (4.11.1)
     actionmailer (4.2.5)
       actionpack (= 4.2.5)
       actionview (= 4.2.5)
@@ -31,45 +31,47 @@ GEM
       activemodel (= 4.2.5)
       activesupport (= 4.2.5)
       arel (~> 6.0)
-    activerecord-jdbc-adapter (1.3.19)
+    activerecord-jdbc-adapter (50.0)
       activerecord (>= 2.2)
-    activerecord-jdbcpostgresql-adapter (1.3.19)
-      activerecord-jdbc-adapter (~> 1.3.19)
-      jdbc-postgres (>= 9.1)
+    activerecord-jdbcpostgresql-adapter (50.0)
+      activerecord-jdbc-adapter (~> 50.0)
+      jdbc-postgres (>= 9.4, < 43)
     activesupport (4.2.5)
       i18n (~> 0.7)
       json (~> 1.7, >= 1.7.7)
       minitest (~> 5.1)
       thread_safe (~> 0.3, >= 0.3.4)
       tzinfo (~> 1.1)
-    addressable (2.4.0)
+    addressable (2.5.2)
+      public_suffix (>= 2.0.2, < 4.0)
     arel (6.0.4)
     ast (2.3.0)
     autotest-rails (4.2.1)
       ZenTest (~> 4.5)
-    bcrypt (3.1.10)
-    bcrypt (3.1.10-java)
-    better_errors (2.1.1)
+    bcrypt (3.1.11)
+    bcrypt (3.1.11-java)
+    better_errors (2.4.0)
       coderay (>= 1.0.0)
-      erubis (>= 2.6.6)
+      erubi (>= 1.0.0)
       rack (>= 0.9.0)
-    binding_of_caller (0.7.2)
+    bindata (2.4.1)
+    binding_of_caller (0.7.3)
       debug_inspector (>= 0.0.1)
-    bootstrap-will_paginate (0.0.10)
+    bootstrap-will_paginate (1.0.0)
       will_paginate
     bootstrap_pagedown (1.1.0)
       rails (>= 3.2)
-    builder (3.2.2)
-    byebug (8.2.2)
+    builder (3.2.3)
+    byebug (9.1.0)
     capistrano (3.3.5)
       capistrano-stats (~> 1.1.0)
       i18n
       rake (>= 10.0.0)
       sshkit (~> 1.3)
-    capistrano-bundler (1.1.4)
+    capistrano-bundler (1.3.0)
       capistrano (~> 3.1)
       sshkit (~> 1.2)
-    capistrano-rails (1.1.6)
+    capistrano-rails (1.3.1)
       capistrano (~> 3.1)
       capistrano-bundler (~> 1.1)
     capistrano-rvm (0.1.2)
@@ -81,141 +83,159 @@ GEM
     capistrano3-puma (1.2.1)
       capistrano (~> 3.0)
       puma (>= 2.6)
-    capybara (2.6.2)
+    capybara (2.16.1)
       addressable
-      mime-types (>= 1.16)
+      mini_mime (>= 0.1.3)
       nokogiri (>= 1.3.3)
       rack (>= 1.0.0)
       rack-test (>= 0.5.4)
       xpath (~> 2.0)
-    carrierwave (0.10.0)
-      activemodel (>= 3.2.0)
-      activesupport (>= 3.2.0)
-      json (>= 1.7)
+    carrierwave (1.2.1)
+      activemodel (>= 4.0.0)
+      activesupport (>= 4.0.0)
       mime-types (>= 1.16)
-    childprocess (0.5.9)
+    childprocess (0.8.0)
       ffi (~> 1.0, >= 1.0.11)
-    codeclimate-test-reporter (0.4.8)
-      simplecov (>= 0.7.1, < 1.0.0)
-    coderay (1.1.0)
+    codeclimate-test-reporter (1.0.8)
+      simplecov (<= 0.13)
+    coderay (1.1.2)
     coffee-rails (4.0.1)
       coffee-script (>= 2.2.0)
       railties (>= 4.0.0, < 5.0)
     coffee-script (2.4.1)
       coffee-script-source
       execjs
-    coffee-script-source (1.10.0)
-    concurrent-ruby (1.0.2)
-    concurrent-ruby (1.0.2-java)
-    concurrent-ruby-ext (1.0.2)
-      concurrent-ruby (~> 1.0.2)
-    d3-rails (3.5.11)
+    coffee-script-source (1.12.2)
+    concurrent-ruby (1.0.5)
+    concurrent-ruby (1.0.5-java)
+    concurrent-ruby-ext (1.0.5)
+      concurrent-ruby (= 1.0.5)
+    crass (1.0.3)
+    d3-rails (4.10.2)
       railties (>= 3.1)
-    database_cleaner (1.5.1)
-    debug_inspector (0.0.2)
-    diff-lcs (1.2.5)
+    database_cleaner (1.6.2)
+    debug_inspector (0.0.3)
+    diff-lcs (1.3)
     docile (1.1.5)
     docker-api (1.25.0)
       excon (>= 0.38.0)
       json
-    domain_name (0.5.25)
+    domain_name (0.5.20170404)
       unf (>= 0.0.5, < 1.0.0)
+    erubi (1.7.0)
     erubis (2.7.0)
-    eventmachine (1.0.9.1)
-    eventmachine (1.0.9.1-java)
-    excon (0.54.0)
-    execjs (2.6.0)
+    eventmachine (1.2.5)
+    eventmachine (1.2.5-java)
+    excon (0.59.0)
+    execjs (2.7.0)
     factory_bot (4.8.2)
       activesupport (>= 3.0.0)
     factory_bot_rails (4.8.2)
       factory_bot (~> 4.8.2)
       railties (>= 3.0.0)
-    faraday (0.9.2)
+    faraday (0.12.2)
       multipart-post (>= 1.2, < 3)
-    faye-websocket (0.10.2)
+    faraday_middleware (0.12.2)
+      faraday (>= 0.7.4, < 1.0)
+    faye-websocket (0.10.7)
       eventmachine (>= 0.12.0)
       websocket-driver (>= 0.5.1)
-    ffi (1.9.10)
-    ffi (1.9.10-java)
+    ffi (1.9.18)
+    ffi (1.9.18-java)
     forgery (0.6.0)
-    globalid (0.3.7)
-      activesupport (>= 4.1.0)
-    highline (1.7.8)
+    globalid (0.4.1)
+      activesupport (>= 4.2.0)
+    highline (1.7.10)
     hike (1.2.3)
-    http-cookie (1.0.2)
+    http-cookie (1.0.3)
       domain_name (~> 0.5)
-    i18n (0.7.0)
-    ims-lti (1.1.10)
-      builder
-      oauth (~> 0.4.5)
-    jbuilder (2.4.1)
-      activesupport (>= 3.0.0, < 5.1)
-      multi_json (~> 1.2)
-    jdbc-postgres (9.4.1206)
-    jquery-rails (3.1.4)
-      railties (>= 3.0, < 5.0)
+    i18n (0.9.1)
+      concurrent-ruby (~> 1.0)
+    ims-lti (2.2.2)
+      addressable (~> 2.5, >= 2.5.1)
+      builder (~> 3.2)
+      faraday (~> 0.8)
+      faraday_middleware (~> 0.8)
+      json-jwt (~> 1.7)
+      simple_oauth (= 0.2)
+    jbuilder (2.7.0)
+      activesupport (>= 4.2.0)
+      multi_json (>= 1.2)
+    jdbc-postgres (42.1.4)
+    jquery-rails (4.3.1)
+      rails-dom-testing (>= 1, < 3)
+      railties (>= 4.2.0)
       thor (>= 0.14, < 2.0)
     jquery-turbolinks (2.1.0)
       railties (>= 3.1.0)
       turbolinks
-    json (1.8.3)
-    json (1.8.3-java)
-    jwt (1.5.1)
-    kramdown (1.9.0)
-    loofah (2.0.3)
+    json (1.8.6)
+    json (1.8.6-java)
+    json-jwt (1.8.0)
+      activesupport
+      bindata
+      securecompare
+      url_safe_base64
+    jwt (1.5.6)
+    kramdown (1.15.0)
+    loofah (2.1.1)
+      crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
-    mail (2.6.4)
-      mime-types (>= 1.16, < 4)
-    method_source (0.8.2)
-    mime-types (2.99.3)
-    mini_portile2 (2.1.0)
-    minitest (5.10.1)
-    multi_json (1.12.1)
-    multi_xml (0.5.5)
+    mail (2.7.0)
+      mini_mime (>= 0.1.1)
+    method_source (0.9.0)
+    mime-types (3.1)
+      mime-types-data (~> 3.2015)
+    mime-types-data (3.2016.0521)
+    mini_mime (1.0.0)
+    mini_portile2 (2.3.0)
+    minitest (5.10.3)
+    multi_json (1.12.2)
+    multi_xml (0.6.0)
     multipart-post (2.0.0)
     net-scp (1.2.1)
       net-ssh (>= 2.6.5)
-    net-ssh (3.0.2)
-    netrc (0.10.3)
-    newrelic_rpm (3.14.3.313)
-    nokogiri (1.7.0.1)
-      mini_portile2 (~> 2.1.0)
-    nokogiri (1.7.0.1-java)
-    nyan-cat-formatter (0.11)
+    net-ssh (4.2.0)
+    netrc (0.11.0)
+    newrelic_rpm (4.6.0.338)
+    nokogiri (1.8.1)
+      mini_portile2 (~> 2.3.0)
+    nokogiri (1.8.1-java)
+    nyan-cat-formatter (0.12.0)
       rspec (>= 2.99, >= 2.14.2, < 4)
-    oauth (0.4.7)
-    oauth2 (1.1.0)
-      faraday (>= 0.8, < 0.10)
-      jwt (~> 1.0, < 1.5.2)
+    oauth (0.5.3)
+    oauth2 (1.4.0)
+      faraday (>= 0.8, < 0.13)
+      jwt (~> 1.0)
       multi_json (~> 1.3)
       multi_xml (~> 0.5)
       rack (>= 1.2, < 3)
     pagedown-rails (1.1.4)
       railties (> 3.1)
-    parser (2.3.3.1)
-      ast (~> 2.2)
-    pg (0.18.4)
-    polyamorous (1.3.0)
+    parallel (1.12.0)
+    parser (2.4.0.2)
+      ast (~> 2.3)
+    pg (0.21.0)
+    polyamorous (1.3.1)
       activerecord (>= 3.0)
     powerpack (0.1.1)
-    pry (0.10.3)
+    pry (0.11.3)
       coderay (~> 1.1.0)
-      method_source (~> 0.8.1)
-      slop (~> 3.4)
-    pry (0.10.3-java)
+      method_source (~> 0.9.0)
+    pry (0.11.3-java)
       coderay (~> 1.1.0)
-      method_source (~> 0.8.1)
-      slop (~> 3.4)
+      method_source (~> 0.9.0)
       spoon (~> 0.0)
-    pry-byebug (3.3.0)
-      byebug (~> 8.0)
+    pry-byebug (3.5.0)
+      byebug (~> 9.1)
       pry (~> 0.10)
+    public_suffix (3.0.1)
     puma (2.15.3)
     puma (2.15.3-java)
     pundit (1.1.0)
       activesupport (>= 3.0.0)
-    rack (1.6.5)
-    rack-mini-profiler (0.10.1)
+    rack (1.6.8)
+    rack-mini-profiler (0.10.7)
       rack (>= 1.2.0)
     rack-test (0.6.3)
       rack (>= 1.0)
@@ -238,7 +258,7 @@ GEM
       rails-deprecated_sanitizer (>= 1.0.1)
     rails-html-sanitizer (1.0.3)
       loofah (~> 2.0)
-    rails-i18n (4.0.8)
+    rails-i18n (4.0.9)
       i18n (~> 0.7)
       railties (~> 4.0)
     railties (4.2.5)
@@ -246,86 +266,87 @@ GEM
       activesupport (= 4.2.5)
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
-    rainbow (2.2.1)
-    rake (12.0.0)
-    ransack (1.7.0)
+    rainbow (2.2.2)
+      rake
+    rake (12.3.0)
+    ransack (1.8.4)
       actionpack (>= 3.0)
       activerecord (>= 3.0)
       activesupport (>= 3.0)
       i18n
-      polyamorous (~> 1.2)
-    rdoc (4.2.2)
-      json (~> 1.4)
-    rest-client (1.8.0)
+      polyamorous (~> 1.3)
+    rdoc (4.3.0)
+    rest-client (2.0.2)
       http-cookie (>= 1.0.2, < 2.0)
-      mime-types (>= 1.16, < 3.0)
-      netrc (~> 0.7)
-    rspec (3.4.0)
-      rspec-core (~> 3.4.0)
-      rspec-expectations (~> 3.4.0)
-      rspec-mocks (~> 3.4.0)
+      mime-types (>= 1.16, < 4.0)
+      netrc (~> 0.8)
+    rspec (3.7.0)
+      rspec-core (~> 3.7.0)
+      rspec-expectations (~> 3.7.0)
+      rspec-mocks (~> 3.7.0)
     rspec-autotest (1.0.0)
       rspec-core (>= 2.99.0.beta1, < 4.0.0)
-    rspec-core (3.4.4)
-      rspec-support (~> 3.4.0)
-    rspec-expectations (3.4.0)
+    rspec-core (3.7.0)
+      rspec-support (~> 3.7.0)
+    rspec-expectations (3.7.0)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.4.0)
-    rspec-mocks (3.4.1)
+      rspec-support (~> 3.7.0)
+    rspec-mocks (3.7.0)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.4.0)
-    rspec-rails (3.4.2)
-      actionpack (>= 3.0, < 4.3)
-      activesupport (>= 3.0, < 4.3)
-      railties (>= 3.0, < 4.3)
-      rspec-core (~> 3.4.0)
-      rspec-expectations (~> 3.4.0)
-      rspec-mocks (~> 3.4.0)
-      rspec-support (~> 3.4.0)
-    rspec-support (3.4.1)
-    rubocop (0.46.0)
-      parser (>= 2.3.1.1, < 3.0)
+      rspec-support (~> 3.7.0)
+    rspec-rails (3.7.2)
+      actionpack (>= 3.0)
+      activesupport (>= 3.0)
+      railties (>= 3.0)
+      rspec-core (~> 3.7.0)
+      rspec-expectations (~> 3.7.0)
+      rspec-mocks (~> 3.7.0)
+      rspec-support (~> 3.7.0)
+    rspec-support (3.7.0)
+    rubocop (0.51.0)
+      parallel (~> 1.10)
+      parser (>= 2.3.3.1, < 3.0)
       powerpack (~> 0.1)
-      rainbow (>= 1.99.1, < 3.0)
+      rainbow (>= 2.2.2, < 3.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (~> 1.0, >= 1.0.1)
-    rubocop-rspec (1.9.0)
-      rubocop (>= 0.42.0)
-    ruby-progressbar (1.8.1)
+    rubocop-rspec (1.20.1)
+      rubocop (>= 0.51.0)
+    ruby-progressbar (1.9.0)
     rubytree (0.9.7)
       json (~> 1.8)
       structured_warnings (~> 0.2)
-    rubyzip (1.1.7)
+    rubyzip (1.2.1)
     sass (3.2.19)
     sass-rails (4.0.5)
       railties (>= 4.0.0, < 5.0)
       sass (~> 3.2.2)
       sprockets (~> 2.8, < 3.0)
       sprockets-rails (~> 2.0)
-    sdoc (0.4.1)
+    sdoc (0.4.2)
       json (~> 1.7, >= 1.7.7)
       rdoc (~> 4.0)
-    selenium-webdriver (2.52.0)
+    securecompare (1.0.0)
+    selenium-webdriver (3.7.0)
       childprocess (~> 0.5)
-      multi_json (~> 1.0)
       rubyzip (~> 1.0)
-      websocket (~> 1.0)
-    simplecov (0.11.2)
+    simple_oauth (0.2.0)
+    simplecov (0.13.0)
       docile (~> 1.1.0)
-      json (~> 1.8)
+      json (>= 1.8, < 3)
       simplecov-html (~> 0.10.0)
-    simplecov-html (0.10.0)
-    slim (3.0.6)
-      temple (~> 0.7.3)
+    simplecov-html (0.10.2)
+    slim (3.0.9)
+      temple (>= 0.7.6, < 0.9)
       tilt (>= 1.3.3, < 2.1)
-    slop (3.6.0)
-    sorcery (0.9.1)
+    sorcery (0.11.0)
       bcrypt (~> 3.1)
       oauth (~> 0.4, >= 0.4.4)
-      oauth2 (>= 0.8.0)
-    spoon (0.0.4)
+      oauth2 (~> 1.0, >= 0.8.0)
+    spoon (0.0.6)
       ffi
-    spring (1.6.3)
+    spring (2.0.2)
+      activesupport (>= 4.2)
     sprockets (2.12.4)
       hike (~> 1.2)
       multi_json (~> 1.0)
@@ -335,43 +356,44 @@ GEM
       actionpack (>= 3.0)
       activesupport (>= 3.0)
       sprockets (>= 2.8, < 4.0)
-    sshkit (1.8.1)
+    sshkit (1.15.1)
       net-scp (>= 1.1.2)
       net-ssh (>= 2.8.0)
-    structured_warnings (0.2.0)
-    temple (0.7.6)
-    thor (0.19.4)
-    thread_safe (0.3.5)
-    thread_safe (0.3.5-java)
+    structured_warnings (0.3.0)
+    temple (0.8.0)
+    thor (0.20.0)
+    thread_safe (0.3.6)
+    thread_safe (0.3.6-java)
     tilt (1.4.1)
-    tubesock (0.2.5)
+    tubesock (0.2.7)
       rack (>= 1.5.0)
       websocket (>= 1.1.0)
-    turbolinks (2.5.3)
-      coffee-rails
-    tzinfo (1.2.2)
+    turbolinks (5.0.1)
+      turbolinks-source (~> 5)
+    turbolinks-source (5.0.3)
+    tzinfo (1.2.4)
       thread_safe (~> 0.1)
-    uglifier (2.7.2)
-      execjs (>= 0.3.0)
-      json (>= 1.8.0)
+    uglifier (3.2.0)
+      execjs (>= 0.3.0, < 3)
     unf (0.1.4)
       unf_ext
     unf (0.1.4-java)
-    unf_ext (0.0.7.1)
-    unicode-display_width (1.1.2)
+    unf_ext (0.0.7.4)
+    unicode-display_width (1.3.0)
+    url_safe_base64 (0.2.2)
     web-console (2.3.0)
       activemodel (>= 4.0)
       binding_of_caller (>= 0.7.2)
       railties (>= 4.0)
       sprockets-rails (>= 2.0, < 4.0)
-    websocket (1.2.2)
-    websocket-driver (0.6.3)
+    websocket (1.2.5)
+    websocket-driver (0.7.0)
       websocket-extensions (>= 0.1.0)
-    websocket-driver (0.6.3-java)
+    websocket-driver (0.7.0-java)
       websocket-extensions (>= 0.1.0)
-    websocket-extensions (0.1.2)
-    will_paginate (3.1.0)
-    xpath (2.0.0)
+    websocket-extensions (0.1.3)
+    will_paginate (3.1.6)
+    xpath (2.1.0)
       nokogiri (~> 1.3)
 
 PLATFORMS
@@ -443,3 +465,6 @@ DEPENDENCIES
   uglifier (>= 1.3.0)
   web-console (~> 2.0)
   will_paginate (~> 3.0)
+
+BUNDLED WITH
+   1.15.4