add utils.idSummary
Merge branch 'master' into idSummary

Conflicts:
	R/utils.R
add idSummary,MSnExp,MSnSet
Merge branch 'master' into idSummary
fix utils.removeNoId: "Error: object 'msexp' not found"
add removeNoId to demo vignette
fix removeNoId manual page example
fix idSummary test cases for MSnExp and MSnSet
require latest pRolocdata version
add missing space
Merge branch 'idSummary' of https://github.com/sgibb/MSnbase
small updates and add Sebastian as vig author
use quantFile/identFile as idSummary file names
use idSummary in addIdentificationData man
typo