Don't include SnailHelpers if Carmen::Rails is already defined, because Snail's region_options_for_select will conflict with the much more useful implementation of this helper method defined in Carmen::Rails.
* Moved snail_helpers to snail/helpers, and included the REGIONS definition in this file.
* Disabled automatic loading of Snail::Helpers and instead added Snail.load_helpers method
* Added deprecation warning when loading Snail::Helpers
Merge pull request #19 from tinynumbers/prevent-helper-conflict

Don't automatically load snail helpers