test
Moved some methods from Marquardt to LineIntensityFit.
Added test for EnumerableExtension.FirstGivesMaxOrDefault.
Merge branch '20141027_ExtendingLma' into developement
Refactoring of test.
Some refactoring
Moved some methods from ArrayFactory to EnumerableExtension.
Added ListExtension
Refactoring of PeakFitting.
Gaussian Distribution PDF.
Refactoring of Marquardt.
Added Arithmetic.
Some refactoring and implemented SpectrumFit.
More meaningful names for variables in EnergyCalibration.
Some refactoring.
Some refactoring and removed PeakCollections.
Removed redundant symbol declarations.
ListExtensionTest, PeakFitting2Test.
Replced PeakFitting with PeakFitting2.
Fixed some errors.