bugfix: antenna selector does not function: Remove selector.
The antenna selector was a hold back to older hardware where both antennas were not used fully.
In all current hardware the system detects the antennas and handles the RF path for us.
The 'hack' we had been using to set the system to use only a single chain no longer works, and since it was a 'hack' to being with (that could cause other issues) it is best to remove it and let the hardware do what it does best.
Dummy loads are still recomended on unused ports for RFI/EMI and keeping the port clean.
fixes AREDN->ticket:120
Trying to registry over-write the antenna setting has never been a good idea in the first place.
The hardware fully handles antenna selection without forcing it already.
ref AREDN->ticket:120
To overhaul the system to allow "0" would take a significant re-write of kernel code. At this time its best to pull channel '0' as it is not in any clear RF space (channel 1 overlaps it)
ref AREDN->ticket:114
Firewall rules don't get called because vtund is at /usr/sbin/vtund not /usr/bin/vtund
Also make the check if line posix compatible while we are chaning the path to be sure it works in the future too.
Reduce filename length by 15 characters at all time. Help reduce problems with max name length for TPLink devices.
This will not solve all issues as our file name style of branch-buildnumber-8CharCommitID the releases can get long.
This will however allow the final build name for a release version to be under the max file length (for now)
ref AREDN->ticket:107
add nodename and tstamp to default filename to reduce chance of submitting wrong file
timestamp may not always be 'real' time if a node does not have ntp access
Remove the chmod step inside of setup.
Came across one time where this didn't trigger.
In addition this saves us from using additional storage space on the node as a +x creates a duplicate file.
When calling uci commit the file gets overwritten and as such the additional file lines are discarded because the active /etc/config/firewall is diffrent than the open file.
Use the uci commit further down in node setup.