DONE create local branch v1.0
DONE reorganise project layout, remove src etc.
DONE update version identifier scheme
DONE update requirements to need petl >= 1.0
DONE remove ipython package, update documentation
DONE migrate push package
DONE create remote branch v1.0 and sync
TODO try installing dependencies under py27 and py34
TODO setup tox for testing under py27 and py34
TODO rewrite interval module using intervaltree
TODO rewrite xls module to remove dependency on xlutils
TODO change all docstring examples to use new import style
TODO review all docs, add info on how to activate an extension
TODO change petl integration code in all submodules
TODO get all doctests running under tox/nose
TODO whoosh bug
TODO review issues
TODO add validate module