fixed issue where settings page was redirecting to nonexistent user profile page

app/controllers/application_controller.rb

@@ -33,7 +33,7 @@ private
   def require_user
     unless authenticated?
       flash[:warning] = "You must be logged in."
-      store and redirect_to new_session_path
+      store_location and redirect_to new_user_session_path
       return false
     end
   end

app/controllers/users_controller.rb

@@ -2,10 +2,7 @@ class UsersController < ApplicationController
 
   before_filter :require_user, only: [:edit, :update]
     
-  respond_to :html, :json
-  
-  autocomplete :user, :name, :full => true
- 
+  respond_to :html, :json 
   
   # GET /user/edit
   def edit
@@ -24,7 +21,7 @@ class UsersController < ApplicationController
     
     @user.save
     
-    respond_with(@user, location: user_url(@user)) do |format|
+    respond_with(@user, location: session[:previous_url]) do |format|
     end
   end