qmpfw: Quick Mesh Project legacy firmware generator (deprecated)

Import: Change vm target from alix2 to generic. References #287.

Change vm target from alix2 to generic. Closes #287.

Fix #282: remove PPP packets from ath-qmp-tiny-node

Merge branch 'master' of qmp.cat:qmpfw

Conflicts:
targets.mk

Add x86 config (for PC)
Add target for alix
Add target for ar71xx imagebuilder

Remove ath5k dependency from ath-qmp-tiny-node to keep images small

Add specific targets for rs/rspro since they are using big-node

Add support for build an imagebuilder with all packages for at71xx

Add new profile for medium-node (small+tinyproxy+ath5k)
Remove ath5k from small-node profile
Create specific configs for tl-wdr4300/3600 since they use big-node profile

Adds a new way to generate/store the configuration files for each target:
There are profiles (such as ath-qmp-small-node) which are shared between all similar kind of devices (i.e ubiquiti devices)
And individual configurations (optional) which can be used to specify extra options for the device