Merge branch 'release/0.4.2.2'
Add file for keeping a change log
Version bump 0.5.0-rc.1
Version bump 0.5.0
Merge branch 'release/0.5.0'
Merge tag '0.5.0' into develop

0.5.0
Preparation for new development cycle after release 0.5.0
Add file with authors of the project
Version bump 0.5.1-rc.1
Version bump 0.5.1
Merge branch 'release/0.5.1'
Merge tag '0.5.1' into develop

0.5.1
Preparation for new development cycle after release 0.5.1