Small cleanups
Renamed tab to preview.
IDEA settings
Changed contact settings.
Updated release notes
Changed to less-promising version number.
Updated version number in plugin descriptor
Updated documentation in plugin
Upgraded to AsciiDoc 1.5.1. Also added initial Gradle support.
Releasing 0.3
Merge remote-tracking branch 'upstream/master'
Merge pull request #17 from bodiam/master

Some improvements