c++11: NULL --> nullptr
c++11: typename::iterator --> auto (step1)
type::iterator --> auto (step2)
c++11: type::iterator --> auto (step 3)
traci apps: CID 77646, 77778 Uninitialized scalar field
simplevoip apps: CID 77618, 77636, 77889 Uninitialized scalar field
httptools: remove unused member variable