- created a grunt tast `test` to only run tests (more or less everything which is in build)
 - added some additional reporters for the frontend test results (results can be found in /out/test/frontend/ and in the console)
 - package.json is now ordered (was done automaticially)
added song filter to filter out inactive songs
added tests for search request and some adjustments out of the testing
adjust backjump to the first page, to do it if we have received the results
Merge pull request #51 from songster-project/feature/MG/testing

Feature/mg/testing
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