#SB-247: Sort out the incorrect groupId-s returned by the SearchRestlet

Fixed.
added logback
added logback
added logback
added logback
added logback
added logback
added logback
Merge pull request #21 from Nikolaus2/logback

Logback
Merge remote-tracking branch 'origin/master'
Non-functional change:
- Dropped the Spring output, unless it's an error.
- Minor polishing to the logback.xml.
Non-functional change:
- Reduced logging to debug.
Non-functional change:
- Reduced number of debug lines.
Non-functional change:
- Removed useless debug.
Non-functional change:
- Reduced amount of logging.
Merge pull request #1 from strongbox/master

added logback