UI Router 1.*.* support

[the-overengineer]

Provides a wrapper around the UI Router handling to allow for both UI Router 0.. and 1.. to be used. Refactors and abstracts the UI Router handling, also moving it into another module.

Was tested with UI Router v1.0.0-rc.1 for v1 support and v0.3.1 for backwards compatibility.

Fixes #176

[mraible]

If I try to build this branch, I get the following error:

$ grunt dist
Running "concat:build" (concat) task
File .tmp/build/stormpath-sdk-angularjs.js created.

Running "html2js:main" (html2js) task
Successfully converted 5 html templates to js.

Running "uglify:build" (uglify) task
>> 2 files created.

Running "docs" task

Running "clean:ngdocs" (clean) task
>> 21 paths cleaned.

Running "ngdocs:api" (ngdocs) task
Generating Documentation...
Warning: No parent named 'stormpath.ui-router.StormpathUIRouterTransition' for 'stormpath.ui-router.StormpathUIRouterTransition#isLegacy' in @methodOf. Use --force to continue.

Aborted due to warnings.

[the-overengineer]

Thanks for checking it out @mraible, I forgot to check whether the docs can be built. My bad. It no longer reports error for the changed files on my side after the latest two commits.