Update to Chromium v57 on Win (cztomczak#341) and fix PyQt5 example o…

…n Win (cztomczak#325).

Fix PyQt5 support on Windows in qt.py example (cztomczak#325).

Update automate.py to use --ninja-jobs also when building CEF projects.
Default jobs ninja uses is very CPU intensive and can cause much lag in OS.

Update to Chromium 57.0.2987.133 on Linux PART 2 (cztomczak#341)

Fix build on Linux and fix logging function on Python 3 (cztomczak#352).

Fix PyBrowser references living forever (cztomczak#330).

Create build_distrib.py tool (cztomczak#317)...

Add --no-run-examples flag to build.py.

Python 3 support on Mac (cztomczak#121, cztomczak#295)

Python 3 support on Mac (cztomczak#121, cztomczak#295)

Fix issues with examples on Windows with v55+ (cztomczak#294)...

All examples do run fine on Windows now.

Add run_examples.py tool to run all examples that can be run on current
configuration.

Expose spell checking support API in the Browser object (cztomczak#274).

See also Issue cztomczak#274 to see command line switches related to spell
checking support.

Run wxpython example after compile.

Fix linux make-setup.py.

Update tools/toc.py.

Update to Chrome 55.0.2883.59 and CEF 3.2883.1539.gd7f087e (cztomczak…

…#271).

Update to Cython 0.25.2.

Fix Certificate Transparency support causing some SSL sites fail
to load after some time (cztomczak#279).

Fix ApplicationSettings.cache_path not working (cztomczak#283).

Fix: Not a clean shutdown in examples, when closing app while browser
is still loading a website (cztomczak#282).

Fix loading local filesystem urls that contained any of ? & =
characters (cztomczak#273).

Fix Request.SetPostData and GetPostData segmentation faults (cztomczak#228).

Add ApplicationSettings.net_security_expiration_enabled.

Update ExecuteJavascript docs with scriptUrl="" and startLine=1
default params. Also worth noting that ExecuteJavascript crashed
in earlier CEF versions when startLine wasn't provided or was <= 0
(Issue cztomczak#268).

Add a test that measures execution time for calling Python function
from javascript and then js callback.

Add Contributing guidelines / Issue template.

Update automate.py, include ceftests executable.