[Fix] Use ActiveSupport::TestCase instead of ActiveModel::TestCase
Merge pull request #22 from seuros/master

[Fix] Use ActiveSupport::TestCase instead of ActiveModel::TestCase
Remove Gemfile.lock
Ignore Gemfile.lock as well
fix typo in README.md
Merge pull request #26 from damien-roche/master

fix typo in README.md
[Fix] App name cannot contain an underscore , closes #23
Merge pull request #25 from seuros/master

[Fix] App name cannot contain an underscore , closes #23
Apps can hook in their own locator.
Apply Jeremys suggestions.
Move only resctriction to locator.
Raise ArgumentError for app names with underscores.
Memoize default locator. Privatize class methods properly.
Use actual app name variable.
Make app name validating public.
Insert case insensitivity into gid.
Use app validation on GlobalID.
Normalize app names when reading or setting locators.