[INTERNAL] check for peak not found in filter 2
[INTERNAL] check for peak not found in filter 3
[INTERNAL] check for -1 indices and NaN intensities added
[INTERNAL] check for -1 indices and NaN intensities added
[INTERNAL] debug output fixed
[DOC] debug removed
[INTERNAL] minor fix
[INTERNAL] fix for evaluation at last node
[TEST] now non-zero intensity at right boundary of test interval
[TEST] tests with sine added
[TEST] relative tolerance added
[TEST] smaller x interval for only 10 nodes
[TEST] test for boundary conditions added
Merge remote-tracking branch 'upstream/develop' into fix/CubicSpline
Merge pull request #931 from lars20070/fix/CubicSpline

[FIX] fixes evaluation of CubicSplines2d at last node
Merge pull request #930 from lars20070/fix/MultiplexFiltering

[FIX] added check for missing peaks to MultiplexFiltering
[Feature] add ProteinProphetAdapter to util_category.
[TEST] add tests for ProteinProphetAdapter.
[FIX] fix enzyme options in pepXML.