v0.2.0

Added

• Subcommand aliases: set _parseraliases_ on an Args subclass to register
  short/alternate names for it in a _subcommands_ tree (e.g. _parseraliases_ = ["c"] so app c runs the same command as app create). Aliases dispatch to the
  same __call__. Absence of the attr is the unchanged default (no aliases).
• __version__ fallback for --version: when _version_ is unset, a
  class-level __version__ string is now used to populate the --version flag, so
  an app already carrying the conventional __version__ gets --version for free.
  _version_ still wins when both are set (and remains the only form that accepts
  the duho.AUTO sentinel).

Changed

• BREAKING: the command-dispatch hook is renamed from __run__ to __call__.
  An Args instance is now directly callable — instance() runs the command —
  and duho.main() dispatches to instance.__call__(). Rename def __run__(self)
  to def __call__(self) on your command classes.

Full Changelog: v0.1.1...v0.2.0