diff --git a/python/plugins/sextante/gdal/GdalUtils.py b/python/plugins/sextante/gdal/GdalUtils.py
index dcb4260d1cb3..7aa3b13d747c 100644
--- a/python/plugins/sextante/gdal/GdalUtils.py
+++ b/python/plugins/sextante/gdal/GdalUtils.py
@@ -112,11 +112,11 @@ def getFormatShortNameFromFilename(filename):
 
     @staticmethod
     def escapeAndJoin(strList):
-        joined = QString()
+        joined = ""
         for s in strList:
-          if " " in s:
-            escaped = '"' + s.replace('\\', '\\\\').replace('"', '\\"') + '"'
-          else:
-            escaped = s
-          joined += escaped + " "
-        return joined.trimmed()
+            if " " in s:
+                escaped = '"' + s.replace('\\', '\\\\').replace('"', '\\"') + '"'
+            else:
+                escaped = s
+            joined += escaped + " "
+        return joined.strip()
diff --git a/python/plugins/sextante/gdal/merge.py b/python/plugins/sextante/gdal/merge.py
index 656ca4ba9ccc..3b3efffc8180 100644
--- a/python/plugins/sextante/gdal/merge.py
+++ b/python/plugins/sextante/gdal/merge.py
@@ -66,7 +66,7 @@ def processAlgorithm(self, progress):
         arguments.append(out)
         arguments.append("-of")
         arguments.append(GdalUtils.getFormatShortNameFromFilename(out))
-        arguments.append(self.getParameterValue(merge.INPUT).replace(";", " "))
+        arguments.extend(self.getParameterValue(merge.INPUT).split(";"))
 
         commands = []
         if SextanteUtils.isWindows():
diff --git a/python/plugins/sextante/grass/ext/r_quantile.py b/python/plugins/sextante/grass/ext/r_quantile.py
deleted file mode 100644
index 7b6b1b297ec1..000000000000
--- a/python/plugins/sextante/grass/ext/r_quantile.py
+++ /dev/null
@@ -1,29 +0,0 @@
-# -*- coding: utf-8 -*-
-
-"""
-***************************************************************************
-    r_quantile.py
-    ---------------------
-    Date                 : December 2012
-    Copyright            : (C) 2012 by Victor Olaya
-    Email                : volayaf at gmail dot 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.                                   *
-*                                                                         *
-***************************************************************************
-"""
-__author__ = 'Victor Olaya'
-__date__ = 'December 2012'
-__copyright__ = '(C) 2012, Victor Olaya'
-# This will get replaced with a git SHA1 when you do a git archive
-__revision__ = '$Format:%H$'
-
-from sextante.grass.ext import HtmlReportPostProcessor
-
-def postProcessResults(alg):
-    HtmlReportPostProcessor.postProcessResults(alg)
-