read.idfile with sep and header attributes for csv files
getPtmInfoFromPhosphoSitePlus: allow specification of multiple modifications
bug fix in proteinRatios: ratiodistr and sign.level was not handed on to combn.protein.tbl
set do.summarize to FALSE for ratiodistr ratio calculation (temporarily)
xls-report: multi-line, tab containing notes cause issues.fixed by substituting them with space character
use file base name as xls name
bug cleanup after isobar-import refactoring
.read.idfile: convert spectrum column to character if it is numeric
check for validity of class labels