Merge pull request #1 from yuhu-/master

merge
adjusted to libebus udpates, start using SymbolString
Merge https://github.com/yuhu-/ebusd

Conflicts:
	src/ebusloop.cpp
file modes
removed BusCommand::getCommandStr() and getResultStr()
notify BusCommand of finished result instead of having two queues in Bus, added isPoll to BusCommand to avoid missing/unallowed deletion of poll/non-poll commands, also return BusCommand in Bus::delCommand() for cleanup
Merge https://github.com/yuhu-/ebusd

Conflicts:
	src/ebusloop.cpp
Merge branch 'john30-master'