adds support for multiple Paperclip attachements on a single Rails model
update validators to avoid db:setup race condition
Merge branch 'multiple-attachments' of https://github.com/hired/fileclip into hired-multiple-attachments

Conflicts:
	lib/fileclip.rb
	lib/fileclip/action_view/helpers.rb
Almost a complete rewrite

* Multiple attachments supported
* JS simplified
* Testing against Rails 3.2 and Rails 4
* Refactored updating into Updater class
* Removed most helpers
* Convered link helper to form helper
* Updated Readme
Merge pull request #12 from ScotterC/convert-form-helper

Rewrite for 0.5