add relaxedMatch, commonPeaks, numberOfCommonPeaks
add binSpectrum
add method and relative argument for numberOfCommonPeaks
add compareSpectra
add plotSpectra
add non-centroided message/warning
round mz to 3 digits
add bin,Spectrum
fix wrong tolerance calculation
Merge branch 'next-devel' into matching

Conflicts:
	NEWS
	R/AllGenerics.R
	R/functions-Spectrum.R
	R/methods-Spectrum.R
add missing parenthesis
MALDIquant is now a dependency and we can use its .which.closest instead of copying the code
add calculateFragments
add matchPeaks and matchFragments
remove useless matchFragments
test for tolerance below zero
move plotSpectrumVsSpectrum to plotting-Spectrum.R
add bin,MSnExp
remove user-visible fun argument for bin
add bin manual page