Recommend course of action re: validations
Check if class is defined instead of SDK version
Version 3.4.2
Downgrade capybara for Ruby 1.9.2
Stub continue_timeout= for Net::HTTP 1.9.3
Fix feature error with 3.0.12
Removed Ruby 2.0 from the acceptable failures list
Fix bundler dependency resolution during development

This allows bundler to complete gem dependency resolution during
development. This is only relevant for paperclip developers. Please see:
https://github.com/thoughtbot/paperclip/issues/1256 and thanks to
@nkondratyev
Added exception handling to paperclip:refresh:thumbnails rake task.

https://github.com/thoughtbot/paperclip/issues/760
Remove the InstanceMethods and reduce class-level state
wip: Paperclip::Tasks::Attachments
Push attachment definitions into a list of attachments for the rake task
Rid ourselves of attachment_definitions
Pull the file setter into a separate object
Move the attachment getter to the HasAttachedFile class
Move the attachment query to the HasAttachedFile class
Move validates_each into HasAttachedFile class
Remove classes_with_attachments
Move the check for path collision out
Clear attachment styles before rake task tests.