Parmap

* Feature: Extra map or starmap arguments given as keyword=value are
allowed. See README.rst for examples.
* Deprecation: The parmap arguments are now prefixed with pm_ to avoid
conflicts with other keyword arguments passed to your functions. The
arguments `parallel`, `chunksize`, `pool`, `processes`, `callback`,
`error_callback` and `parmap_progress` are still valid but deprecated and
they may be removed in a future parmap version. The `parmap_progress` is
now `pm_pbar` and the other deprecated arguments now have `pm_` in front
of them (e.g. `parallel` is now `pm_parallel`).
* Feature: Add progress bar to parmap.starmap if tqdm is installed. Needs
`pm_pbar=True`.
* Feature: Add progress bar support when parallel=False as well. Needs
`pm_pbar=True`.
* Fix: parmap.starmap_async was not passing the callback properly
* Fix: parmap.map_async and parmap.starmap_async were not returning an
AsyncResult object when `parallel=False`.
* Fix: async functions called without `pm_pool` are now asynchronous. However
they should be used within a `with .. as` block to make sure the pool
created by parmap internally is properly closed.

-- Sergio Oller <sergiollergmail.com> Thu, 21 Sep 2017 12:07:09 +0200

* Feature: Add progress bar to parmap.map if tqdm is installed

-- Sergio Oller <sergiollergmail.com> Wed, 19 Jul 2017 10:21:00 +0200

* Feature: Add map_async and starmap_async functions (that support multiple arguments)

-- Sergio Oller <sergiollergmail.com> Mon, 30 May 2016 16:07:36 +0200

* Fix: Close pools if needed on exception. Thanks to saddy001 for reporting
the fix.

-- Sergio Oller <sergiollergmail.com> Sun, 30 Aug 2015 21:36:22 +0200

* Fix: Description in setup.py should be a string, not a tuple. Thanks to
Sam Spilsbury for pointing that out and submitting the fix.

-- Sergio Oller <sergiollergmail.com> Thu, 23 Apr 2015 08:49:41 +0200

* Fix: Do not close pool in parmap.map and parmap.starmap if pool is
given as an argument.

-- Sergio Oller <sergiollergmail.com> Fri, 16 May 2014 13:18:58 +0200