Merge pull request keptn#1514 from keptn/patch/fix-api

added missing import

Merge pull request keptn#1318 from keptn/patch/releasenotes2

Synced release notes with tag

Merge pull request keptn#1203 from keptn/patch/travis

Improve release process automation
As discussed with Christian

Merge pull request keptn#1146 from keptn/release-0.6.0.beta

Release 0.6.0.beta

Merge pull request keptn#1075 from keptn/release-0.5.2

Release 0.5.2

Merge pull request keptn#1055 from keptn/release-0.5.1

Release 0.5.1

Merge pull request keptn#926 from keptn/patch/update-compatibilities-…

…descriptions

Update versions

Merge pull request keptn#841 from keptn/patch/update-release-notes

Update release notes

Merge pull request keptn#565 from keptn/release-0.4.0

keptn#534 Release 0.4.0

Merge pull request keptn#487 from keptn/feature/467/merge-master

Release 0.3.0