Minor fixes

This commit includes some minor fixes in preparation
of the next release that will bring write capabilities.

- Added likes and comment count
- Added about
- Added developers information
- Added release script
- Minor cleanups in QML files
Bump version to 0.1.2
Initial support of photos

We can now load photos from an album and from
friends. We can also read more information about
a given album and like it.
Added release script
Bump version to 0.1.3