Added LmSimpleIO. LmSimpleIO is meant to be the very simple implementation of the current LmConnection (send code) + lm_message_node_xml + LmParser. After this is properly refactored I can start looking into writing a more robust version of these using expat or LibXML.

lm-change-password
lm-register
lm-send-async
lm-send-sync
test-http-proxy
test-lm
test-tunnel