Merge branch 'maint-0.3.5'

  o Code simplification and refactoring:

    -  When parsing a port configuration, make it more

       obvious to static analyzer tools that we will always initialize the

       address. Closes ticket 28881.

  for (; ports; ports = ports->next) {

    tor_addr_t addr;

    tor_addr_make_unspec(&addr);

    int port;

    int sessiongroup = SESSION_GROUP_UNSET;

    unsigned isolation = ISO_DEFAULT;