use bundler for tests instead of load path manipulation
create pg_trgm extension when migrating db
minitest assert_match fixes for ruby 2.0
Added OR example to readme
Remove the unnecessary  method
Upgrade pg dependency
This fixes the "NoMethodError: undefined method `error_field` for #<PGresult>" error observed when running the test suite.
Support includes by naming the rank column differently
Use rand with max instead of SecureRandom for performance
Merge pull request #4 from ngauthier/master

Minitest fixes for ruby 2.0, minor test cleanup
Note Nick's changes in CHANGES.
Merge pull request #9 from gregmolnar/master

Added OR example to readme
Add Greg's change to CHANGES.
Merge pull request #12 from sorentwo/remove-passthrough-normalize

Remove the unnecessary normalize
Fix test relying on removed method.
Add Parker's change to CHANGES.
Merge pull request #14 from jeremyruppel/fix-search-includes

Fix search includes
Fix method_missing with Rails 4.
Another abstract_class? check.
Prevent scoped deprecation warning in rails 4
Trigger query in test compatible with AR 3 and 4.