Stm32loader

* Publish on Python Package Index.
* Make stm32loader executable as a module.
* Expose stm32loader as a console script (stm32loader.exe on Windows).

* Make stm32loader installable and importable as a package.
* Make write_memory faster (by Atokulus, see `1`).

* Add version number.
* Add this changelog.
* Improve documentation.
* Support ST BlueNRG devices (configurable parity).
* Add Wiznet W7500 / SweetPeas bootloader chip ID.
* Fix ack-related bugs in (un)protect methods.
* Add 'unprotect' command-line option.
* Read device UID.
* Read device flash size.
* Refactor __main__ functionality into methods.


2018-05
* Make RTS/DTR (boot0/reset) configurable (polarity, swap).


2018-04
* Restore Python 2 compatibility.


2018-03
* Add support for Python 3.
* Remove Psyco and progressbar support.
* Fix checksum calculation bug for paged erase.


2014-04
* Add `-g <address>` (GO command).
* Add known chip IDs.
* Implement extended erase for STM32 F2/F4.


2013-10
* Add Windows compatibility.


2009-04
* Add GPL license.