Hawk credentials shouldn't be mandatory
Simple integration tests
Fixed payload so it's actually sending JSON right... don't know what it did before
Merge remote-tracking branch 'upstream/fix-payload'
Integration tests against the production server
Move utility functions into utils.py
Split tests into their own script
Fix tests for _processArg and payload handling

Conflicts:
	Makefile
	taskcluster/client.py
include more detail in exception messages

Conflicts:
	taskcluster/client.py
Implement the keyword and positional as agreed
Update the README.md for updated keyword arguments
Fix tests for _processArg and payload handling

Conflicts:
	Makefile
	taskcluster/client.py

Conflicts:
	taskcluster/client.py
	test/test_client.py
Add utils
Merge branch 'fixes' into test

Conflicts:
	taskcluster/client.py
	test/test_client.py