Updating to remove deprecation warnings when using ActiveRecord 4.
Checking for ActiveRecord::VERSION only if it has been defined.
Appraising with ActiveRecord 4 only if Ruby verison is >= 1.9.
Using Ruby 1.8.7 compatible hashes.
Adding a Helpers module containing ActiveRecord-version-agnostic 'count' method.
Replacing duplicate travis build entry of 1.9.3 MySQL AR3.2 with AR4.
Fixing wording of contexts in Helpers module spec.
Fix rspec deprecation warnings.
Merge remote-tracking branch 'harigopal/activerecord-4'