Merge branch 'hotfix-0.4.6'
Merge branch 'release-0.4.7'
Merge branch 'release-0.5'
Merge branch 'release-0.5.1'
Merge branch 'release-0.5.2'
Merge branch 'release-0.5.3'
Removed packages versions from requirements.
Merge branch 'hotfix-0.5.4-requirements' into develop