Pockets

--------------------------

* Adds absolute-import-only mode to pockets.inspect.resolve() by passing an
empty string for the `modules` parameter

------------------------

* Changes pockets.collections.mappify() to return an empty dict if passed None

------------------------

* Adds pockets.collections.is_mappy() and pockets.string.splitify()
* Drops support for Python 2.6 and Python 3.3

--------------------------

* Adds "key" parameter to pockets.collections.uniquify()

------------------------

* Updates pockets.inspect.import_star() so that it returns a map of attrs
instead of setting them on the module

--------------------------

* Better exception reporting in pockets.inspect.resolve()
* pockets.inspect.hoist_submodules() now updates parent __all__ by default