Some configuration defaults

- one-shot mode by default (Lot of arguments for it, but don't remember
  what they where.  Somewhere along the line of more precise or
  something)
- larger pool of objects (I've been badly bitten by this before)
- no serial driver by default (Not many users of serial port in
  real-time)

Signed-off-by: Shahbaz Youssefi <ShabbyX@gmail.com>