Added version 2.5.

Added 'bin/f2py' to ignore so that activation works.

var/spack/repos/builtin/packages/py-numexpr/package.py

@@ -7,8 +7,9 @@ class PyNumexpr(Package):
     url      = "https://pypi.python.org/packages/source/n/numexpr/numexpr-2.4.6.tar.gz"
 
     version('2.4.6', '17ac6fafc9ea1ce3eb970b9abccb4fbd')
+    version('2.5', '84f66cced45ba3e30dcf77a937763aaa')
 
-    extends('python')
+    extends('python', ignore=r'bin/f2py$')
     depends_on('py-numpy')
 
     def install(self, spec, prefix):