Changelog update

Merge pull request #370 from boltgolt/dev

Version 2.6.0

Merge pull request #178 from boltgolt/dev

Version 2.5.1

Merge pull request #118 from boltgolt/dev

Version 2.5.0

Merge pull request #94 from boltgolt/dev

Version 2.4.0

Added missing changelog entry

Merge pull request #48 from boltgolt/dev

Version 2.3.0

Merge pull request #37 from Boltgolt/dev

Version 2.2.2

Merge pull request #34 from Boltgolt/dev

Version 2.2.1

New CLI and debian package structure