Bugfix
                         
                    
                    When a new app is created, a pom.xml is filled from the passed parameters.
Here, properties are sometimes inlined where variables should actually be.
Test
- Create a new app. 
    
- Expectation: Except in the definition of the parent and the definition groupId, artifactId and version there are no "hard" references to these values.
 
 - Call mvn install. 
    
- Expectation: There is a ".deb" file in the target folder whose name is composed of the artifact id and the version.
 
 - Change the version. Call mvn install. 
    
- Expectation: There is another ".deb" file in the target folder whose name is composed of the Artifact ID and the new version.