Legal banners and module descriptions

extras/Hadrons/Modules/MSource/Wall.hpp

@@ -1,3 +1,31 @@
+/*************************************************************************************
+
+Grid physics library, www.github.com/paboyle/Grid 
+
+Source file: extras/Hadrons/Modules/MSource/Wall.hpp
+
+Copyright (C) 2016
+
+Author: Andrew Lawson <andrew.lawson1991@gmail.com>
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along
+with this program; if not, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+See the full license in the file "LICENSE" in the top level distribution directory
+*************************************************************************************/
+/*  END LEGAL */
+
 #ifndef Hadrons_Wall_hpp_
 #define Hadrons_Wall_hpp_
 
@@ -11,11 +39,10 @@ BEGIN_HADRONS_NAMESPACE
  
  Wall source
  -----------------------------
- * src_x = theta(x_3 - tA) * theta(tB - x_3) * exp(i x.mom)
+ * src_x = delta(x_3 - tW) * exp(i x.mom)
  
  * options:
- - tA: begin timeslice (integer)
- - tB: end timeslice (integer)
+ - tW: source timeslice (integer)
  - mom: momentum insertion, space-separated float sequence (e.g ".1 .2 1. 0.")
  
  */