[FIX] added .gitattributes to test data folders

 * disables line ending conversion for test data
 * fixes #647
[DOC] add OpenSWATH classes to DefaultParamHandlerDocumenter
[FIX-#618] fix spelling errors across OpenMS header files
[PATCH 1/2] add initial peak quality for output
[PATCH 2/2] iRT paper for Sara
[FIX] add Chauvenets criterion as a CLI flag

- possible to turn on/off the use of Chauvenets criterion
Added MRMRTNormalizer::rm_outliers_ransac
further changes