ciosrv => make thread configurable, new class: cthread
crofconn => derives from cthread
Merge branch 'devel-0.6' into akoepsel/devel-0.6/threading

Conflicts:
	examples/testomat/ccontrol.cpp
	src/rofl/common/crofconn.cc
ciosrv => constructor: call method notify() for waking up target thread