Pytype

* Print transient progress messages.
* Rename pytype to pytype-single and pytype-all to pytype.
* Use the system and site package dependencies found by importlab in pytype-all.
* Make the pytype-all help message friendlier.
* Allow pytype-single args to be specified in a config file.
* Add a merge-pyi subtool to merge pyi files into their Python sources.
* Expose some pytype-single options to pytype-all.
* Add a script which runs pytype tests.
* Allow specifying config file variables for pytype-all on the command line.
* Add a --version option to display the pytype version.

* Use different flags when compiling with gcc or clang.

* Add flags for building with clang on Mac OS X.
* Allow pytype-all to accept directories as input.
* Change pytype-all's config file to INI style, and fall back to setup.cfg.
* Make analyze_annotated a command-line option.
* Add pythonpath guessing to pytype-all.

* Make some fixes to the release packaging.

* Release pytype-all.

* Release pytype.