bumped plugin version used in docs
fixes for rpm/dep plugin docs
doc fix for deb plugin
[Gradle Release Plugin] - pre tag commit:  '1.12.6'.
[Gradle Release Plugin] - new version commit:  '1.12.7-SNAPSHOT'.
Merge pull request #47 from pniederw/master

doc updates and fixes
Merge branch 'master' into gradle-1.12.
Merge branch 'gradle-1.12' into gradle-2.0.