modified fix from carl for region copy-moves-original-to-start bug; change verbose...

modified fix from carl for region copy-moves-original-to-start bug; change verbose canvas cursor color to be more distinct and readable; fix naming issues with imported files containing ':'; make sure [N] channels count shows up for whole files in region list; fix #1575, a subtle and nasty bug; improve positioning of verbose canvas cursor for ruler drags (but has a wierd side effect

git-svn-id: svn://localhost/ardour2/trunk@1675 d708f5d6-7413-0410-9779-e7cbd77b26cf