switch source to gitlab as that's the new upstream source
use wrapper variables for everything but i18n
add sym and fp templates to template path
update meta to reflect kicad's own language
set license to AGPLv3, according to the source's LICENSE.README
reduce diff between default and unstable in preparation of merging
on debian gets "no module named 'math'"
pcbnew 3d viewer is unusable (at least on my T410)