If cookies are disabled, the Statuspage only displays an empty ("Not connected")
This checks if the localStorage API is available and working and only uses it in this case
Also allows better backwards compatibility.

Tested build on a minimal Ubuntu 16.04 container image without wget.

Tested-by: Jannis Pinter <jannis@pinterjann.is>

The downgraded version of ath9k was reported to cause issues with Windows
clients before. Remove the problematic patch.

In addition, the temperature compensation support patch is reverted.

It seems that newer mac80211 version are less stable, so we downgrade it
for now.

This probably doesn't affect Gluon as nothing is using recvmmsg, but it's
still a good idea to get this fixed ASAP.

docs: update link to site repository of Freifunk MWU

Fixes #886

If next_node.ip4 is not set or gluon-next-node is not used, prefix4 will
now be optional as well.

The GLUON_ATH10K_MESH must be set to 11s or ibss; when it is not set,
ath10k device images won't be built at all. This also allows us to remove
the BROKEN flag for ath10k devices, as the GLUON_ATH10K_MESH variable is
sufficient to avoid ath10k devices if desired.

Fixes #864

The MR1750 and OM5P-AC devices are based on ath9k SoCs and an external
ath10k chip. All devices which are using ath10k should be marked as broken
due to deficits in their IBSS support.

Signed-off-by: Sven Eckelmann <sven.eckelmann@open-mesh.com>

None of them are used by modern browsers anymore, so it's safe to remove them.