Adjust dependencies for Rails 4.0rc1
Merge branch 'master' into rails4
Merge branch 'master' into rails4
Relax dependencies to include Rails 4.0.0rc.

This change also includes Mongoid from `master` branch, because Mongoid 3.1.X requires different ActiveModel than ActiveRecord.
- self.abstract_class no longer needed in Rails 4
- removed unnecessary touch to config since master now loads ORM on demand
Always include sqlite3 in test and development
ActiveSupport >= 4.0 no longer works on Ruby 1.9.2
Merge branch 'master' into rails4

Conflicts:
	Gemfile
Only include the Dynamic module for Mongoid >= 4.0.0
Relax dependencies to include final Rails 4.0 release
Merge branch 'master' into rails4

Conflicts:
	Gemfile
Add bash script for running all tests
Add separate Gemfile for legacy Rails 3.X
Simplify Rails-specific gemfiles and fix syntax of .travis.yml
Specify ruby version for special cases of Rails dependency
No longer test with PA_PURGE flag. Was redundant.
Fix paths for gemspec in Rails-specific gemfiles
Merge pull request #104 from pokonski/rails4

Rails 4 support