scraps.go/stderr : `println` → `printf`; main.go/init : make missing mandatory config options cause a controlled dying; naib.conf : add commandPrefix
Drop stacks.go and use github.com/lahemi/stack instead. Change interactivecmds.go/parse and interactivecmds.go/eval to reflect the change of `stack` implementation.
Save all the links to SQLite3 db, for posterity. Move title fetch func to scraps.go from main.go.
Merge branch 'master' of https://github.com/lahemi/naib

Signed-off-by: Antti-Ville Jokela <antti-ville@avjokela.eu>

Conflicts:
	naib.conf
Fix config file after conflicts

Signed-off-by: Antti-Ville Jokela <antti-ville@avjokela.eu>