Fix compilation errors (-Werror)
add libaugeas-dev to build-depends for debian package
initial getConfigTree() support via augeas
add getconfigtree and setconfig commands
Clean out legacy /command RPC
Added a notify test in rcp-test.py
Renamed rpc-test to test_agorpc, allows "python -m unittest discover" to find the test automatically
agorpc: reorganize jsonrpcRequestHandler to be easier to follow

Exit early on errors to avoid deep indentation and having to nest down to an "else" section 100 rows down to see to see what the error is