[maven-release-plugin] prepare release deegree-3.4-pre11
[maven-release-plugin] prepare for next development iteration
LinePlacement: 'center' and 'wordWise' extension implemented
LinePlacement extensions documentation added
Merge pull request #287 from IDgis/3.4-line-placement

LinePlacement: 'center' and 'wordWise' extension
[maven-release-plugin] prepare release deegree-3.4-pre12
[maven-release-plugin] prepare for next development iteration