* fix two potential race conditions in ap/sta handling

Signed-off-by: Dirk Brenken <dev@brenken.org>

* small performance optimization, code cleanup
* change copyright notice in makefile
* documentation update

Signed-off-by: Dirk Brenken <dev@brenken.org>

* change option 'trm_iw' to boolean,
  1 => use iw (default)
  0 => use iwinfo
* option 'trm_maxretry' now accepts '0' to disable this check at all
* documentation update

Signed-off-by: Dirk Brenken <dev@brenken.org>

* simplified network setup
* refine scan-timeout between different radios
* raise error counter on lost uplink connections too
* documentation update

Signed-off-by: Dirk Brenken <dev@brenken.org>

* a connection manager for travel router
  (see readme.md for details)

Signed-off-by: Dirk Brenken <dev@brenken.org>