added handling of release notes button (fate#314695)
Added builting for passing release notes
require libyui that provides the release notes button
removed the shared library dependency: rely on so-versioning
Merge branch 'master' into release-notes-button

Conflicts:
	package/yast2-ycp-ui-bindings.changes
bump version
documented SetReleaseNotes
Merge pull request #16 from yast/release-notes-button

Release notes button