Added options parameter to $.activerecord_sortable. It may be useful for case when you need cancel sortable at specific selector.

Added touch options to acts_as_sortable.

• Added option axis ('y' by default) to setup dragging axises #6

• Fixed order column name escape bug by @dabroz
• Fixed Ruby 2.2 Rails 3.2 RSpec fail

• fixed ordered scope bug: now using correct order in sqlite
• integrated rubocop
• added Rails 3.2, 4.0, 4.1, 4.2 and Ruby 1.9.3, 2.0, 2.1, 2.2 build matrix

Added ability to specify order for nested models via form page's fields_for and drag and drop.

Removed Ruby on Rails version lock: now supports 3+ version.