Expand parser.Context tests re: .args attribute
Allow override of Python level 'name' attr
Use the name attribute of Argument instead of reaching into .names
DDD, TDD re: replacing underscored w/ dashes re: arg.names
Mostly-working implementation; need to fix CLI tests/context.to_dict()
Fix up to_dict crap in tests
DDD
Integration level test re: inverse bool flags
Set up Context level framework re: mapping inverse flags to real flags
Failing parser level test re: inverse bools
Make parser level test pass.

Integration level test still fails tho, wat
Add Contxt level test guard against failure seen in CLI test
Correct bad test re: parser context + inverse_flags