Mark film_rolls.folder NOT NULL in db
Bump lua version after a bugfix

<boucman_work> houz,  I fixed a bug since rc1 which is lua-visible
<boucman_work> so I need to bump the API version minor number
<boucman_work> so could you either wait until I do that or do it
yourself (just increase API_VERSION_PATCH #define in
src/lua/configuration.c)
<boucman_work> thx
rawspeed: panasonic lx5/leica dlux5 16:9 support