Fix typo
Merge pull request #692 from seanhussey/patch-1

Fix typo
Reset some more buttons styles for frontend toolbar
fix content error translation when content_name is nested on element
add test for translation error messages when content_name is nested on element
Updating travis build settings
Disabling bundler cache on travis.
Re-enable bundler cache on travis and update build script
Use bundle exec rspec to build
Bump version to 3.1.0.beta2
Convert attribute type to symbol in searchable_attributes

While the usage description of the `alchemy_resource_relations` class method indicated to use strings as values, the `searchable_attributes` method was checking these values against a symbol. This check could never return true.
Fixes #694 Join associations in query_items

The associations of a model needs to be joined when selecting a record and the columns of the associated models are involved.

If no association exists nothing will be joined because the array is empty.