Renamed "opbeat_python" to "opbeat".
Renaming in progress.
Updated to the new config API, docs fixes and more cleanup.

Conflicts:

	docs/install/index.rst
	opbeat/base.py
	opbeat/contrib/zerorpc/__init__.py
	setup.py
Merge branch 'rename' of github.com:opbeat/opbeat_python into rename

Conflicts:
	README.rst
	docs/conf.py
	docs/config/index.rst
	docs/index.rst
	docs/install/index.rst
	docs/usage.rst
	opbeat/base.py
	opbeat/contrib/zerorpc/__init__.py
	setup.py
	tests/contrib/zerorpc/zeropc_tests.py