Mozapkpublisher

Changed
* Use new store_l10n APIs

Added
* New installation instructions for OS X
* Better logs
* Test coverage

Added
* Check to prevent single locale APKs to be pushed ([bug 1314712](https://bugzilla.mozilla.org/show_bug.cgi?id=1314712))
* --dry-run flag

Changed
* Mute some debug logs coming from dependencies

Fixed
* Other missing files in package

Fixed
* Missing files in final package

* Initial release