Fix NSDictionary <-> metadata codec

Fixed memory leak in server_async

Swapping the library order so that anything that openssl requires is properly tagged afterward.

Label all iomgr objects

Add a completion queue test

run_tests.py support for C# on windows

Fix bug with finite runs per test

Conflicts:
	src/core/iomgr/fd_posix.h
	src/core/iomgr/iomgr.c

Various minor fixes

Fixing tools compilation.

- create completion queue
- call shutdown
- call next

Revamped iomgr's callback mechanism

Initial Census refactoring and context integration

Adding csharp_dotnet into interop tests

Currently the binaries are built manually which will be automatd in the future.

Adding csharp_dotnet into cloud suite of tests

Merge pull request #1828 from ctiller/i-wish-the-number-that-used-to-be-displayed-represented-my-bank-balance

Fix the display of total slowdown

Currently the build is manual but will be automated over time

Overhaul Python C layer.

This allows a list of them to be dumped to isolate where memory leaks
are occuring.

The concept of managed closure is officially extinct.

Added "inf" as a valid option to run_test.py's -n flag.

fix buildall.bat script