also unlet the comment specifier
prevent error from calling <sid> function on unsetting FileType
updated documentation
Silence :ArrangeColumn (suggested by Caylan Larson)
check filetype before calling aggregate functions
Better cleaning up, if header windows were used
let :VHeader accept a count, of how many columns to show
Better errorhandling for :CSVFixed
Selection of inner/outer text object fields was wrong
Merge github.com:chrisbra/csv.vim

Conflicts:
	ftplugin/csv.vim