Shosetsu Preview r2363

r2363 Latest commit: shosetsuorg/shosetsu@05ec375

New:
- Add ACRA identification to AboutController

Fixes:
- Fix qr scanner not being opened after leave it
- Ensure bulk operations do not exceed 999 variables per query
- Possibly fix migration from database 2 to 3, I will not test this.
- Fix dual output not being respected
- Launch certain views in single top mode to prevent crashes

Misc:
- Only update repositories when there are no extensions
- Better handle errors
- Update user agent
- Specify mimeType when creating a backup
- Code clean ups