"Upporting" commits from 0.5 into master.

Conflicts:
	INSTALL

Python code generator fixes.

Better parallelization for C

Add timer to run_tests.py

For future profiling work to eliminate/speed-up slow tests.

Simple installation instructions for Python.

Create PATENTS

Trying to do a better job at running C tests on travis.

Fixes module path finding in the Python code generator and the signatures
of generated servicer methods.

Fix typo in README.md

Adding a basic travis.yml file.

The Python interop client.

fix the version of debian package builder script

Work towards invocation-side security.

Introduce slowdown factor for unit test deadlines

Fix max_concurrent_streams test

Deflake dualstack socket test

The server_host_override flag's implementation remaining
outstanding means that this only works over insecure
connections for now.

Update INSTALL for C

Updated Python Status

Minor fix to INSTALL