rewrite existing functional tests using testthat
add testsuite for read.FCS
add support for ncdfFlowList to findTimeChannel
support SPILLOVER keyword parsing for FCS3.1
add 22 functional tests for read.FCS
replace workflow section with GatingSet and openCyto
defunct filterSet class
cite openCyto paper
demo sequential quadrant gating using  OpenCyto in vignette
merge from trunk