add role teacher to application_policy, implement teacher into team_policy

app/policies/application_policy.rb

@@ -4,6 +4,11 @@ class ApplicationPolicy
   end
   private :admin?
 
+  def teacher?
+    @user.teacher?
+  end
+  private :teacher?
+
   def everyone
     true
   end

app/policies/team_policy.rb

@@ -1,6 +1,6 @@
 class TeamPolicy < ApplicationPolicy
   [:create?, :index?, :new?].each do |action|
-    define_method(action) { admin? }
+    define_method(action) { admin? || teacher? }
   end
 
   [:destroy?, :edit?, :show?, :update?].each do |action|

lib/xikolo/client.rb

@@ -1,4 +1,4 @@
-class Xikolo::3Client
+class Xikolo::Client
   def self.get_user(user_id)
     params = {:user_id => user_id}
     response = get_request(user_profile_url(user_id), params)