Cumulo

This update includes a lot of new features:
- New storage providers: Box and SugarSync
- Upload files directly to Cumulo
- Upload files from other aplications to Cumulo
- New file operations: delete, rename
- New folder operations: new, rename and delete
- Take photos/videos to upload
- New language: Portuguese
- In-app purchase: disable the ad / upgrade to Pro

The update also fixes reported bugs:
- Skydrive login error on tactile devices
- Dropbox login improved
- Error loading a folder with a large number of files
- Other bugs