Upload sources jar in bintray upload
Gradle plugins version bump
Move to Gradle 2.0
Gradle 2.0 naming scheme
Do scm configuration/autodetection instead of multiple plugins

Having multiple plugins in same codebase seems to be unsupported
in Gradle 2.1's plugin registry.
Version bump jgit
Refactoring: Single plugin with scm config/autodetection

Currently uses static infos, which causes tests to fail
Pass reference to plugin to task instances

Avoids global state, allows proper testing and is generally an
desirable goal :-)
Move tasks to separate package
Docs, version bump 0.6.0