Move scala-maven-plugin to build to fix signature verification
Prepare for 2.9 release
[maven-release-plugin] prepare release v1.6.13_2.9
[maven-release-plugin] prepare for next development iteration
Prepare for 2.10 release
[maven-release-plugin] prepare release v1.6.13_2.10
[maven-release-plugin] prepare for next development iteration
Revert release preparations
Merge branch '1.6-SNAPSHOT'