* src/*.{cc,h}: Update copyright notice:  The postal address of
the Free Software Foundation changed, and my email address too.
Also, remove the statement I had inserted which explicitely
disallowed using a later version of the license.  I think I do
not have to ask for permission from contributors, since the
copyright notice only mentions me as the copyright holder, so
technically everyone automatically transferred her copyright
to me.  Anyway, the change is utterly minor and the notice now
matches what everyone else is using.
Also use the opportunity to get rid of the version control
substitutions and the trailing empty line in every file.
* ui/aboutdialog.glade: Update my email address.

svn path=/trunk/; revision=589