removed the recently added function broadenMzRanges()
Included Ralf's patch, adding columns for mzminROI and mzmaxROI
Fixed a bug which caused that the number of scans extracted by rawEIC( ... , rtrange = ... ) is one less than the number it should be.
* added methods getEIC.profile( xcmsRaw, ... ) and getEIC.raw( xcmsRaw, ... ) for class xcmsRaw
* added method parameter for getEIC to getOption("BioC")$xcms
* fixed documentation for getEIC( xcmsRaw, ... )