Merge tag 'v0.2.0' into develop

releasing 0.2.0
Merge tag 'v0.2.1' into develop

hotfix 0.2.1
Merge tag 'v0.2.2' into develop

hotfix 0.2.2
Merge tag 'v0.2.3' into develop

hotfix 0.2.3
fixed exception on changing group for pad in admin
bumped version
Merge branch 'release/0.2.4'