Ignore egg-info
Merge pull request #38 from cpcloud/ignore-egg-info

Ignore egg-info
first draft for MDNotImplementedError
dispatch uses dispatch_iter

Reduces duplication
fix NotImplementedError when signatures found but fail
add MDNotImplementedError to __init__.py
Merge pull request #39 from mrocklin/not-implemented

first draft for MDNotImplementedError
bump version to 0.4.7
binstar.yml builds 2.{67} 3.{34}