nitpick

heavily rework lua discovery and linking, needs testing but it's more similar to what we do for other libraries now

oops, haskell uses gcc to link, correctly pass flags

since shared libs are now our friends, let's optimise them

aaaaand let's not forget about lua, which has also a slightly revised build process

drop the '_'

and now also avwrapper can be shared/static, add visibility to its exported functions, drop (needed only when static)

also physlayer can be comiled as static or shared now

redid FindGLEW in the right way (tm)

love cmake when it works

pas2c import

setup RPATH, bump cmake

update with default

these check are now useless

Many of the gears treat non-0 timer as overridden. Added that check in more places so that lua could use this a tiny bit more consistently. Also preserve state for jetpack.