Wheee, more Kindle startup script tweaks...

Unfortunately, it appears that we do eed to sleep some more when started
from KUAL, because the framework schedules a refresh that risks popin up
over us if we start too early/fast... :/.

I tried to be tricky (by stopping awesome, and s cheduling a resume
later) to avoid sleeping, but that didn't work :'(.
We just end up with the scheduled refresh as soon as awesome resumes...
Merge remote-tracking branch 'upstream/master'
Close lipc handles on exit.

No idea if bad things happen if we don't, but at least this sounds more
correct. (re #696)
Update koreader-base...

To check how badly the nightlies will implode... ;D
We don't need those at startup, delay until needed.
Add an 'ASAP' variant to the KOReader KUAL menu.

Does away with the added ~3s of sleep, in exchange of possible UI quirks
at startup.
Merge pull request #702 from NiLuJe/master

Some more Kindle tweaks