Cirrus for owncloud

- added link to source code in description.

v 1.0.6
- redesigned login screen
- redesigned thumbnails and image handling, optimized memory usage
- fixed thumbnail/image reload on screen orientation change
- vector drawable file state images
- remember list position on orientation and view change

Featured:
Async operations for better UX. No more UI lagging :)

v 1.0.5
- attempting to fix startup crash on update to 1.0.4