Merge pull request #14 from thrau/master

[OPENENGSB-3710] Upgrade maven-checkstyle-plugin to 2.12
OPENENGSB-3655 upgrade orientdb
Merge pull request #15 from stfnsche/master

OPENENGSB-3655 upgrade orientdb
upodated CHANGELOG and notice plugin path
Merge pull request #16 from stfnsche/master

upodated CHANGELOG and notice plugin path
fix scm.url
Merge pull request #17 from stfnsche/master

fix scm.url
fix maven-release-plugin configuration
[maven-release-plugin] prepare release v34
[maven-release-plugin] prepare for next development iteration
[OPENENGSB-3718] removed obsolete aduna plugin repo
[OPENENGSB-3717] downgraded orientdb to 1.3.0 due to failing ITests
Merge pull request #18 from mipe/master