OMSSA-xml parsing speed +20%; some statistics after OMSSA & XTandem finished search (#identified spectra); some cleanup
fixed copy&paste error; some minor optimizations
fixed real-doublereal issue
Merge pull request #747 from cbielow/search_stats

Speedup OMSSA-XML parsing and some stats for OMSSA&XTandem
Merge pull request #751 from uweschmitt/feature/track_peptide_identifcation_base_name

[FEATURE] track base name when reading pep.xml files
Merge branch 'develop' into feature/track_peptide_identifcation_base_name
[FIX,TEST] adapted test for PeptideIdentifaction::empty