update issue #18 thanks to tomskside
does currently not work in ProgressView (Ctrl+F5)

git-svn-id: http://graph-studio-next.googlecode.com/svn/trunk@405 c2f33eb2-41b2-391d-4cb4-d9d0608729ba
fixed issue #241
thx to msalihcaliskan

git-svn-id: http://graph-studio-next.googlecode.com/svn/trunk@406 c2f33eb2-41b2-391d-4cb4-d9d0608729ba
fixed issue #240
thx to bruno.uy

git-svn-id: http://graph-studio-next.googlecode.com/svn/trunk@407 c2f33eb2-41b2-391d-4cb4-d9d0608729ba