add separate make install targets
gitignore: data directories and sqlite databases
app_monitor: remove raw proc entry, add FIXME

FIXME:
when file is read with cat, and cat is interrupted with ^C
.release isn't called immediately - only at module unload
after module reload, proc file becomes unusable (Invalid
argument)

it doesn't happen with dd, even if it's killed with -9
improve init script
another init script change
Makefile: add CFLAGS_MODULE parameter
add README.md and update symbols patch