traci: allow SUMO 0.20.0
doc: autogenerate call graphs, include source code
Restructure configure and update for inet-2.3.0
build system: only try building command line scripts if ./configure ran
traci: split TraCIScenarioManager into TraCICommandInterface, TraCIConnection, TraCIBuffer, TraCIColor, and TraCICoord
move default nodes out of examples
add RSU and RSU Example