add .readSynapterSpectrumXml
add .createSpectrum and .createMs2SpectrumFromSpectrumXml
add testcases
add .filterNeutralLoss
add .createMs2SpectrumFromFragments
add .commonPeaks
add .plotIdentVsQuantSpectra
add .readFragments
correct comment
add readSpectraAndFragments and flatMatchedEmrts
fix error in .commonPeaks if mx has length == 1
add plotCrossmatching
fix progressbar
use MSnbase::Spectrum2 objects in import functions
adjust crossmatching to Spectrum2 objects
complete rewrite of the plotting functions
fix testcases
add testcase for normalize
fix fragment.str order
rescue missing quant spectra