Update version to 3.8.1 release

Remove Home Message plugin in favor of existing Message of the Day

Update CHANGELOG.md for 3.8.1-beta1

Merge branch 'develop'

Update SQL script

Add WebDAV backend option at installation process

Update CHANGELOG.md

Update CHANGELOG.md and set version to 3.7.0

Version 3.6-alpha6

Version 3.6-alpha5

Version 3.6-Alpha4