No longer refer to sources.grml.org

sources.grml.org was relevant until we switched to building
the source archives directly from within grml-live (around 2012).

While at it fix some styling issues in the LICENSE file.

templates/GRML/LICENSE.txt

@@ -1,16 +1,13 @@
 ==================================================================
-The grml software collection and all included programs that are
-authored by the grml-team, are subject to the terms and conditions
+The Grml software collection and all included programs that are
+authored by the Grml team, are subject to the terms and conditions
 of the GNU GENERAL PUBLIC LICENSE Version 2 or any later version,
 as quoted herein.
 
 Please note that this license does NOT automatically apply to
 third-party programs included on this CD. Check
 /usr/share/doc/*/copyright* and other supplied license files
 of each software package carefully for more information.
-
-Information regarding the sources of this ISO can be found at
-http://sources.grml.org/
 ==================================================================
 
 		    GNU GENERAL PUBLIC LICENSE