fix for off-by-one bug on months in datetime.py, by russell yanofsky

git-svn-id: https://pyjamas.svn.sourceforge.net/svnroot/pyjamas/trunk@2396 7a2bd370-bda8-463c-979e-2900ccfb811e

CHANGELOG

@@ -1,6 +1,8 @@
                     Changes made to Pyjamas since 0.6
                     ---------------------------------
 
+ * Off-by-one bug in datetime on months, fixed by Russell Yanofsky
+
  * Fix for menu highlighting by Pavel Mironchyk
 
  * Add initial port of python logging module

CREDITS

@@ -56,6 +56,7 @@ Bill Winder <wgwinder@gmail.com>
 Niki Spahiev
 flerda (http://code.google.com/u/flerda/)
 Davorin Kunstelj (http://code.google.com/u/davorin.kunstelj/)
+Russell Yanofsky <russell@yanofsky.org>
 
 
 Erik gets a special mention for the contribution of the "Showcase".

copyright

@@ -56,6 +56,7 @@ Copyright: 2010 Niki Spahiev
 Copyright: 2010 flerda (http://code.google.com/u/flerda/)
 Copyright: 2010, Tobias Weber <tobi-weber@gmx.de>
 Copyright: 2010 Davorin Kunstelj (http://code.google.com/u/davorin.kunstelj/)
+Copyright: 2010 Russell Yanofsky <russell@yanofsky.org>
 
 Files: examples/flowpanel/*
 Copyright: 2009 jordonwii (http://code.google.com/u/jordonwii)

pyjs/src/pyjs/lib/datetime.py

@@ -6,17 +6,17 @@ def __init__(self, year=None, month=None, day=None, hours=None, minutes=None, se
             raise NontImplementedError("tzinfo")
         JS("""	
     if (microseconds !== null)
-        self.date = new Date(year, month, day, hours, minutes, seconds, 0.5+microseconds/1000.0);
+        self.date = new Date(year, month-1, day, hours, minutes, seconds, 0.5+microseconds/1000.0);
 	else if (seconds !== null)
-	    self.date = new Date(year, month, day, hours, minutes, seconds);
+	    self.date = new Date(year, month-1, day, hours, minutes, seconds);
 	else if (minutes !== null)
-	    self.date = new Date(year, month, day, hours, minutes);
+	    self.date = new Date(year, month-1, day, hours, minutes);
 	else if (hours !== null)
-	    self.date = new Date(year, month, day, hours);
+	    self.date = new Date(year, month-1, day, hours);
 	else if (day !== null)
-	    self.date = new Date(year, month, day);
+	    self.date = new Date(year, month-1, day);
 	else if (month !== null)
-	    self.date = new Date(year, month);
+	    self.date = new Date(year, month-1);
 	else if (year !== null)
     {
         if (pyjslib.isNumber(year))