Add tool for tracking jam->python merges

[SVN r56043]

v2/to_merge.sh

@@ -0,0 +1,16 @@
+#!/bin/bash
+
+for python in build/*.py; do
+    jam="${python%.py}.jam"
+    if [ -f "$jam" ]; then
+        line=`grep "Base revision" $python`
+        revision=`echo $line | sed 's/# Base revision: \([0-9]*\).*/\1/'`
+        if [ -e "$revision" ] ; then
+            echo "No base version for $python" >&2
+        else
+            svn diff -r $revision:HEAD "$jam"
+        fi
+    fi
+done
+
+