Merge pull request #890 from stfnsche/master

update openengsb root version
use oriendb version 1.2 lest travis build fails
use 3.0.0 release version for domain-parent pom
Merge pull request #891 from stfnsche/master

set released version of parent domain and connector pom
[OPENENGSB-3738] Use a custom script to execute itests on Travis