(feature for Windows developers) added a small Windows .reg file, which allows to change file extensions on Windows to another OpenMS instance
[DOC] some minor documentation addition
Merge pull request #897 from cbielow/develop

(feature for Windows developers) added a small Windows .reg file
Merge pull request #899 from timosachsenberg/fix/ModificationsDB_doc

[DOC] some minor documentation addition
[FIX] fix MS level for DTA file reader

fixes #893
[FIX] fix test
Merge pull request #901 from OpenMS/feature/fix893

[FIX] fix MS level for DTA file reader
[FIX] pepXML writing format.
[FIX] Distinguish PeptideProphet_pepXMl and raw_pepXMl.

[FIX] RT_index information from XTandem is added to spectrum id and scan_id in stored pepXML file.

[FIX] change parameter name and uncrustify.
[FIX] add test data for PepXMLFile and XTandemAdapter.
[FIX] Fix the spectrum_query in test data for PepXMLFile().store.
[FIX] pepXML: replace spaces by tabs; adapt the raw_data type; edit documentation.