Add acknowlegements

Author: schlatterbeck

CHANGES.txt

@@ -49,7 +49,8 @@ Fixed:
 - Fix another XSS issue2550817. Note that the code that triggers that
   particular bug is no longer in roundup core. But the change to the
   templates we suggest is a *lot* safer as it always escapes the error
-  and ok messages now.
+  and ok messages now. Thanks to Thibault Fevry for the original
+  bug-report.
   If you are upgrading: you *MUST* read doc/upgrading.txt and do the
   necessary changes to your templates, the escaping now happens in the
   template and not in the roundup code. So if you don't make the

doc/acknowledgements.txt

@@ -43,6 +43,7 @@ Andrew Eland,
 Jeff Epler,
 Tom Epperly,
 Tamer Fahmy,
+Thibault Févry
 Vickenty Fesunov,
 Hernan Martinez Foffani,
 Stuart D. Gathman,