Hand.to_combos()
Pairs are not offsuit hands. They are just pairs.
Little bit faster attribute lookup.
Faster Range initialization.

Only add Hands, not combos, so less objects needed.
In exchange, range.combos and range.hands attributes are very slow to generate.
Directly exposing attributes for faster lookup.
Containment method for fast lookup.

Supports str, Range, or even Combo objects to look up if they are in the range.
pythonrc file for automatic loading
Count percentage 6 times faster.
Faster str()
Combos and hands are stored in different variables internally.
Faster len().
Simplified Combo.__lt__
Lookup optimization.
Not using Shape internally, but exposed in public API.
Bump version number.
Merge branch 'range-speed'