[FIX,TEST] fixed MRMDecoy

[FIX,TEST] fixed MRMDecoy_test

[FIX,TEST] fixed OpenSwathDecoyGenerator tests
[FIX] MRMDecoy: std::map replaced with boost::unordered_map
Merge pull request #679 from grosenberger/develop

[FIX,TEST] fixed OpenSwathDecoyGenerator / MRMDecoy