Migrated to polyamorous 1.1.0
Merge pull request #397 from orbanbotond/rails-4.1

Bump Polyamorous to 1.1.0 in Gemfile and gemspec
[bugfix] Fix crash when blank string passed to Search#

This is a port of PR #371 on the master branch.
Update README to same as master branch [ci skip]
Update README with latest Rails 4.2 gemfile info

and add minor text changes.

[ci skip]
Fix Rspec deprecation warnings when running tests

[ci skip]
Use model scopes with Ransack as in master branch
Merge pull request #399 from chrodriguez/rails-4.1

Port #390/#288 Use Model Scopes over from master
Update Gemfile, gemspec and travis-ci
 Update README and fix Authorization section

[skip ci]
Gemspec: remove 'pg' version & prefer single quotes
 Use new Docker queue and don't install Bundler,

it's already installed