Merge pull request #32 from johnnyshields/master

Refactor + New Features + All Specs passing
Deprecate `between` method for ActiveRecord, as it is set in the global ActiveRecord::Model scope and is likely to conflict with other gems.
Cleanup whitespace
Set version to be a pre-release.
Merge pull request #33 from radar/dep-between

Deprecate `between` method for ActiveRecord
Support for "past_"

* week
* fortnight
* month
Fix DST issue related to fortnight
Merge branch 'master' of http://github.com/radar/by_star
Merge pull request #35 from davegudge/master

Support for "past_"
Bug Fix: :field, :start_field, and :end_field options were being ignored on finder