0.6dev: Switching `master.py` to use new `self._send_response()` and `self._send_error() methods. Simplifies code, but most importantly for errors it allows a consistent method for transmitting plain-text error messages to the slave (that the slave will now output as part of debug logging). Raising Trac HTTP* errors actually causes full rendering of an HTML error page as response, which is both inefficient as well as making it near-impossible to extract the 'hidden' message from the master.

prune bitten/htdocs
prune bitten/templates
prune doc
prune scripts
exclude bitten/*.py
include bitten/build/tests/*.py
exclude bitten/report/*.py
exclude bitten/report/tests/*.py
exclude bitten/tests/*.py
include setup.py
exclude MANIFEST.in
include bitten/__init__.py
include bitten/build/*.py
include bitten/recipe.py
include bitten/slave.py
include bitten/slave_tests/*.py
include bitten/util/*.py
include bitten/util/tests/*.py