Adding ngCordovaMocks to the ngCordova project.

Here are a summary of the changes and additions:

#### Additions
- Added `src/mocks/*`. These are the mock implementation of the ngCordova services.
- Added `test/mocks/*`. These are the tests associated with the files in `src/mocks/*` 
- Added `src/module-mocks.js`. This file is for bundling the mocks in a `ngCordovaMocks` module.

#### Changes
- Updated `bower.json` to include my contact info
- Updated `build.config.js` to separate plugin files from mock files.
- Updated `karma.config.js` to include mock tests.
- Updated `gulpfile.js` to create the `ng-cordova-mocks.js` files.