Set version to 2.6.0

Set version to 2.5.0, ready for release!

Set version to 2.4.0 and update language files

Change version to 2.3.2 and update languages

- Russian has been added
- Spelling errors in French have been corrected

Update languages, set version number to 2.3.1

- Added German translation
- Added French translation
- Added Norwegian translation

Change version number to 2.3.0, update languages

- Only English and Dutch are available yet

Update language files

English, Dutch and German are complete, others are only partially complete.

Prepare for the v2.2.1 release

- Update version number
- Update language files from Transifex

Prepare for the v2.2.1 release

- Update version number
- Update language files from Transifex

Add permissions for landlords to remove regions

Closes #33