Add project_id as hidden field on post form
Merge branch 'day1start' of github.com:makersquare/ativa into day1end

* 'day1start' of github.com:makersquare/ativa:
  Add project_id as hidden field on post form
Add :user_id to post form
Merge branch 'day1end' of github.com:makersquare/ativa into day2start

* 'day1end' of github.com:makersquare/ativa:
  Add :user_id to post form
  Add project_id as hidden field on post form

Conflicts:
	app/controllers/posts_controller.rb