Add an indexing service

[ghost]

It would be nice to break up the application in 2 one of which would be an indexing service that would constantly listen for folder changes and update the database and a client that would connect to the database.

[cboxdoerfer]

That's a really great idea. I'll add it to my to-do list.

[mbnoimi]

This is really an important feature because some people (like me) have ton of files so updating database on startup make no sense.

[bigntallmike]

I'm watching the database populate for the first time and I'm wishing I could code an inotify updater for it. Would be a great feature for sure!