Adds cursor loader class. Needs integration with adapter.
Adds logs for cursor loader, CS fixes
:x: bedtime. Take a look at GalleryItemCurLoader.loadInBackground.

- it's cyclic so checkout cursor loader in more detail to see what needs to be done, yo
Splits loaders into cursor and api, adds refresh policy
Merge pull request #21 from ataulm/cursor_loader_gallery_item

Cursor loader gallery item