Usecase1: when a frame is defined as its own parent, it must get the World frame as parent. -> this situation wasn't correctly managed (checkedparent is a pointer on a Component not a Frame). Manage the frames with the names resolves the issue.
Usecase2: when a child frame of a frame is defined as the new parent of the frame, the new parent frame must have the world frame as parent. This a complex management of the frame items.

+ spaces replace tabs, remove trim trailing spaces
 

git-svn-id: svn+ssh://scm.forge.imag.fr/var/lib/gforge/chroot/scmrepos/svn/camitk/trunk/camitk@1826 ec899d31-69d1-42ba-9299-647d76f65fb3