update
new url
Download thumbnails from server with rest api
- removed help function
- Using Uri.encode...
- Thumbnail size is set to 32dp
Merge branch 'thumbnails_from_server' of https://github.com/tobiasKaminsky/android into thumbnails_from_server

Conflicts:
	src/com/owncloud/android/ui/adapter/FileListListAdapter.java
Add check of server version before requesting remote thumbnails
Merge branch 'develop' into thumbnails_from_server

Conflicts:
	src/com/owncloud/android/ui/adapter/FileListListAdapter.java
Bugfix
Fixed. When an image is updated in the server and app folder is refreshed, the thumbnail does not change and it is not updated
Fix. Update the way of setting the needed of update a thumbnail when the image changes on the server
Adjust the thumbnails size to the size used on screen
Some clean-up in ThumbnailsCacheManager
Merge pull request #687 from owncloud/thumbnails_from_server

Get remote thumbnails from server (OC8)