[FEATURE,PARAM] added option to store MGF files in a more compact format
[FIX-#890] use compact format for MGF file in Mascot search (fixes #890)
[TEST,PARAM] updated test with new signatures of 'store' methods
[FORMAT] adjusted decimal precision for writing compact MGF
[PARAM,DOC] added option to write compact MGF; small doc improvements
[FORMAT] removed unnecessary newlines in MGF output
[INTERNAL] use preprocessor constants for decimal precision values
[TEST] added test for storing MGF in compact format
[INTERNAL] reset decimal precision of stream after storing MGF file
Merge pull request #898 from hendrikweisser/mgf-compact

More compact format for MGF files (fixes #890)