Relax the regex that checks for .mustache extension to not require end of string, because this fails with templates that end in mustache.erb for erb pre-processing.
Added tests to cover this case, also for module.js.erb. Erb processing may be needed to asset_path expansions for the asset pipeline.
Moved the JS test fixture files into a subdirectory for better clarity of tests vs fixture data. All tests pass.
Bump version to 0.2.0.0.2 and updated README.
Incorporate suggestions:
- Rev version to 0.2.1
- Refine regex to avoid matching on "mustaches"; .mustache can be followed by a . or by the end of string.
Merge pull request #2 from wolframarnold/erb_support

Support mustache.erb and .module.js.erb