Use question_number method for multi_record_category questions
Use QuestionDecorator to display the question number
Only show completed resposnes in the excel
Added Response No to the excel file
Check for complete responses instead of responses
Added a black border for each response
Added a exists? method in User model
Added a publisher model
Fixed the photo url bug in excel reports

Conflicts:
	app/decorators/response_decorator.rb
	app/models/answer.rb
	app/views/responses/index.html.erb
Removed better_errors gem as it was casuing segmentation errors
Revert "Change `Create New Record` to use AJAX."

This reverts commit a50f88134da143307daef4bc28f25f2c9179133a.
Confirm before creating a new record for a response with unsaved changes.
ResponsesController#update redirects to `:back`.
Mark a response dirty if there are unsaved changes to rating questions too.
Refactored publications_controller#update with publisher model
Fixed a bug with publisher validations