Merge pull request #61 from marunjar/dev

merge dev branch
Merge pull request #62 from marunjar/dev

merge dev branch
Merge pull request #63 from marunjar/dev

merge dev branch
Merge pull request #64 from marunjar/dev

merge dev branch
Merge pull request #65 from marunjar/dev

merge dev branch
bump version

bump version to 0.28
enable writing events to calendar
Merge remote-tracking branch 'origin/master' into dev