diff --git a/app/views/codeharbor_links/edit.html.slim b/app/views/codeharbor_links/edit.html.slim
index 43a92c7e..1ccf2a3b 100644
--- a/app/views/codeharbor_links/edit.html.slim
+++ b/app/views/codeharbor_links/edit.html.slim
@@ -1,3 +1,3 @@
-h1 = 'Codeharbor link'
+h1 = CodeharborLink.model_name.human
 
 = render('form')
diff --git a/app/views/internal_users/show.html.slim b/app/views/internal_users/show.html.slim
index 6e876ec9..71a16383 100644
--- a/app/views/internal_users/show.html.slim
+++ b/app/views/internal_users/show.html.slim
@@ -9,8 +9,3 @@ h1
 = row(label: 'internal_user.activated', value: @user.activated?)
 
 = row(label: 'codeharbor_link.profile_label', value: @user.codeharbor_link.nil? ? link_to(t('codeharbor_link.new'), new_codeharbor_link_path, class: 'btn btn-secondary') : link_to(t('codeharbor_link.edit'), edit_codeharbor_link_path(@user.codeharbor_link), class: 'btn btn-secondary'))
-
-/ - if @user.codeharbor_link.nil?
-/   = row(label: 'codeharbor_link.profile_label', value: link_to(t('codeharbor_link.new'), codeharbor_link_new_path, class: 'btn btn-secondary'))
-/ - else
-/   = row(label: 'codeharbor_link.profile_label', value: link_to(t('codeharbor_link.edit'), edit_codeharbor_link_path(@user.codeharbor_link), class: 'btn btn-secondary'))
diff --git a/config/environments/development.rb b/config/environments/development.rb
index ba0880a5..b91a19b5 100644
--- a/config/environments/development.rb
+++ b/config/environments/development.rb
@@ -3,15 +3,15 @@ Rails.application.configure do
   config.webpacker.check_yarn_integrity = true
   # Settings specified here will take precedence over those in config/application.rb.
 
-  config.web_console.whitelisted_ips = '192.168.0.0/16'
-
+  config.web_console.whitelisted_ips = '192.168.0.0/16'  
+  
   # In the development environment your application's code is reloaded on
   # every request. This slows down response time but is perfect for development
   # since you don't have to restart the web server when you make code changes.
   config.cache_classes = false
 
   # Do not eager load code on boot.
-  config.eager_load = true
+  config.eager_load = false
 
   # Show full error reports.
   config.consider_all_requests_local = true
diff --git a/db/schema.rb b/db/schema.rb
index d86763dd..1f82e621 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 2019_08_30_142809) do
+ActiveRecord::Schema.define(version: 2019_09_05_152630) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -154,6 +154,7 @@ ActiveRecord::Schema.define(version: 2019_08_30_142809) do
     t.boolean "allow_auto_completion", default: false
     t.integer "expected_difficulty", default: 1
     t.uuid "uuid"
+    t.string "import_checksum"
     t.index ["id"], name: "index_exercises_on_id"
   end
 
diff --git a/lib/file_io.rb b/lib/file_io.rb
index 39627b99..b19ef187 100644
--- a/lib/file_io.rb
+++ b/lib/file_io.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-# stole from: https://makandracards.com/makandra/50526-fileio-writing-strings-as-carrierwave-uploads
+# stolen from: https://makandracards.com/makandra/50526-fileio-writing-strings-as-carrierwave-uploads
 class FileIO < StringIO
   def initialize(stream, filename)
     super(stream)