add self to license permission

[SVN r22772]

more/blanket-permission.txt

@@ -15,3 +15,4 @@ Fernando Cacciola (fernando_cacciola@ciudad.com.ar)
 Michael Glassford (glassfordm - at - hotmail.com)
 Eric Friedman (ebf@users.sourceforge.net)
 Peter Dimov (pdimov@mmltd.net)
+Jens Maurer (Jens.Maurer@gmx.net)