fix running test on deployed app :
* use jul instead of logback (logback hang sometimes when ConsoleAppender use stderr, and run via JUnit (maven-surfire, eclipse)
* use only assembly (+ workaround) instead of appassembler that doesn't include metadata in generated repository
* test move to integration-test phase to access lib (repository) with .jar AND .pom to be able to compile Compiler for .js and .scala
use template (velocity) to generate script
clean the pom.xml
[maven-release-plugin] prepare release 0.3.0