[6cfaf6]: Merge branch 'bug-12911-registrationOutline'

Merged commits:

2012-08-28 12:10:38 Thomas Van Bruggen [355ddb]
Merge remote-tracking branch 'origin/bug-12911-registrationOutline' into bug-12911-registrationOutline

2012-08-25 13:22:07 Thomas van Bruggen [7749e0]
contour as helper node

2012-08-25 12:04:02 Thomas van Bruggen [c49cdc]
clean up

2012-08-25 12:03:36 Thomas van Bruggen [9c01e1]
enable turning on and of the contour view

2012-08-25 11:32:59 Thomas van Bruggen [0355d7]
added optional contour from segmentation that can be modified with a threshold slider

2012-08-21 18:16:13 Thomas Van Bruggen [a4a60f]
started on the contour visualization

[1618c0]: Merge branch 'bug-12911-Usability'

Merged commits:

2012-08-29 10:27:03 Thomas Van Bruggen [721522]
only update the contour when mouse is released, otherwise it handles to slow

2012-08-28 16:28:44 Thomas Van Bruggen [21d9cd]
modify label when slider is moved

when deleting both images te contour still remains, so this must also be deleted correctly