Do not depend on the respondd-airtime module just to get the configured
channels. This removes the display of the frequency in addition to the
channel, as it is not readily available.

In addition, the translation string is improved to allow for text after
the channel number.

(cherry picked from commit 0d3fa6b5)

This code is usually running on an embedded CPU without FPU. In
addtition to its inefficience, the algorithm is also much harder to
understand.

Replace the logarithm formula with a simple loop.

(cherry picked from commit f2e0f7e3)

(cherry picked from commit dcb8738a)

With this commit, the gateway nexthop is now a clickable link, that leads
to the status page of the nexthop.

(cherry picked from commit 3a885a1b)

It was found that a one second timeout for nodeinfo data may be too low,
so that when a node is otherwise occupied that timeout may be reached
too often.

The nodeinfo query response is also vital to the status-page base
template, so that when it times out, the site will be turned in a broken
state, that it cannot recover from.

Fixes: #2256
(cherry picked from commit 76185e3a)

overflow for 'DejaVu Sans'.

This renames the local_client zone to loc_client, as local_clint exceeds
the maximum zone length allowed for firewall3, which is 11 bytes.

This worked previously due to firewall3 using unsafe string operations.
Now creation of the chain fails (latest OpenWrt master).

This adds the wireless client count for 2.4GHz and 5 GHz radios to the
status page. Previously, only the total client count advertised by
the mesh protocol was visible.

This reverts commits
- caf2dd03.
- 07ebac6a
- 55eff45f

I accidentally pushed these commits as I had them lying around on a
dirty checkout I did testing on.

The original commit only applied its changes to the source file and did
not rebuild the minified file, therefore the change never went live.

Fixes: #659
Signed-off-by: Martin Weinelt <martin@darmstadt.freifunk.net>

Let gluon-respondd expose "MemAvailable" from /proc/meminfo to allow for
a more realistic memory-usage estimation.

Information on MemAvailable can be found here:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/
commit/?id=34e431b0ae398fc54ea69ff85ec700722c9da773

The field was accidentally removed during the status-page rewrite.

Fixes #1401

batman-adv-specific parts are moved to a new package
gluon-status-page-mesh-batman-adv.

gluon-status-page: reduce usage of absolute paths in cgi-bin scripts neighbours-nodeinfo and stations

The field is unused.