Don't add optimization flags for "--debug-level none"
Don't add optimization flags for "--debug-level none"

Choosing 'none' now means no changes to CFLAGS whilst the 'debug'
and 'full' still add optimizations among other options because
they can have a significant effect on generated code.


dokidokivisual/midori,dokidokivisual/midori,dokidokivisual/midori,dokidokivisual/midori,dokidokivisual/midori