Megapixels 2.0: Small fixes and GTK breakage

Looking back it seems like making an alpha release of Megapixels 2.0 was a great choice. The various components that make up Megapixels have been through the packaging steps at Mobian for example which brought some light to issues that would improve the packaging. A lot more eyes have hit the code in this release than the random stuff thrown to git and I'm really happy I've received a lot of…