Add support for + and * parameter suffixes

* Updated readme to reflect changes
* Added edge case handling for trailing slashes in non-strict mode when the path passed in already ends in a slash
* Tests
Update path to mocha file
Merge pull request #28 from blakeembrey/trailing-capture

Add support for + and * parameter suffixes
Merge pull request #29 from blakeembrey/istanbul-test-patch

Update path to mocha file