more refactoring
have base PhotoEditView that loads photo correctly
autoenhance works
added cropping and undoes and memory management

and then i amended it and fixed a stupid typo bug
Finalized PhotoEditView, feature complete

* Can import any size images from library or camera
* Can apply auto-enhance filter with confirmation
* Can crop (with cool interface!) with confirmation
* Resolved all bugs due to resizing issues
* Performant (enough) with 8mp images
* EntryView + everything else now support showing non-square images
* Woohoo, Nokia Imaging SDK!
Merge branch 'nokia-image-sdk' into develop