Allow angle brackets within nominal values (this makes the set of allowed characters identical to TEXT's
Bug 155: rootnode name for text/nominal should be 'var'
pre_version.txt incremeent to rev6
typechanger.rb: converts all non-matric columns (and their cells) to matrices
Bug 157: Warning message for missing QT libraries
Bug 156: Ruby variable dumps removed from Datavyu_API.rb, small changes to typechanger script
Ruby script changes: typechanger.rb, renamecolumns.rb
Bug 157: QuickTime warning changes - include hyperlink
Merge branch 'master' into reorganize