This change will brake all information with -(minus) from projects
created before this commit, but in the other side the use of data bases
for QET will be more easily to understand by avoid to replace the
-(minus) by _(underscore) in the tables of data bases.
Sorry for that, it's for your good.
fix crash due to the deletion of the GHOST element last, this example contains ghost elements and causes a crash at launch
git-svn-id: svn+ssh://svn.tuxfamily.org/svnroot/qet/qet/trunk@5499 bfdf4180-ca20-0410-9c96-a3a8aa849046
