Feature request : configurable back/skip times

[madbrain]

Using a USB keyboard, it looks like when playing back a recorded show, the left arrow key (back) goes back 15 seconds, and the right arrow goes forward 7 seconds. Would it be possible to have more sensible defaults, such as 10 seconds back / 30 second for forward ?
This is more practical when manually skipping commercials - typically going 30 seconds forward at a time, then 10 seconds back if one went too far.
Perhaps others would prefer other values, so making it configurable might make sense.

Another thing I noticed is that playback does not resume until clicking/pressing enter. That makes it really slow to manually skip commercials.
Playback should resume automatically after skipping/rewinding, just like it does in the NextPVR client for Windows.