add filtering
better
a few feedback iterms
Fix equality in OrderedSet.

This is biting us in a pants unittest.
more varz
fix review feedback
Merge pull request #301 from benjyw/fix_orderedset_equality

Fix equality in OrderedSet.
twitter.common.app should delegate exceptions to sys.excepthook

Reviewed at https://rbcommons.com/s/twitter/r/570/
Increment twitter.common to 0.3.1

Reviewed at https://rbcommons.com/s/twitter/r/571/
Update the comment
Merge pull request #299 from alexstaytuned/add_filtering_for_py_metrics

Add filtering for py metrics
Add --index support to pex.  Add a CHANGES file.

Reviewed at https://rbcommons.com/s/twitter/r/577/