fix the bool gate expression in vignette

git-svn-id: https://hedgehog.fhcrc.org/bioconductor/trunk/madman/Rpacks/flowWorkspace@73602 bc3139a8-67e5-0310-9ffc-ced21a209358
fix this by stripping the names from the list passed to GatingSetList constructor #62
Merge commit 'bb0c07eee32e0d53756f686dc732e4d1c54f8d54' into trunk
Merge branch 'trunk' of github.com:RGLab/flowWorkspace into trunk