update .hgignore for hackable with Python 2.7 stable

update .hgignore for hackable with Python 2.7

--- a/.hgignore	Sat Apr 28 15:01:57 2012 +0200
+++ b/.hgignore	Sat Apr 28 01:22:35 2012 +0200
@@ -52,6 +52,6 @@
 ^\.(pydev)?project
 
 # hackable windows distribution additions
-^hg-python26/
+^hg-python
 ^hg.exe$
 ^hg.py$