Increase build.number to 2.10.3

Gets this branch ready for the next release in the 2.10.x series.

Author: James Iry

build.number

@@ -1,7 +1,7 @@
 #Tue Sep 11 19:21:09 CEST 2007
 version.major=2
 version.minor=10
-version.patch=2
+version.patch=3
 # This is the -N part of a version.  if it's 0, it's dropped from maven versions.
 version.bnum=0