Added mask_rax_roles_403 to validator template
Add tests for content if enable-rax-roles or mask-rax-roles-403 set in validator
Incremented version number, modified changelog
Removed whitespace at end of lines to resolve lint errors
Merge pull request #17 from cheord/master

Added support for mask-rax-roles-403 in validator
adding rackspace-identity-basic-auth filter