Update pitivi to 0.999
- Forcably load numpy as soon as possible so the required gcc library can get pulled in. This fixes the problem of not being able to find numpy at all.
Submitted by: woodsb02@ (0.99 version + numpy patch),
Olivier Duchateau (earlier version), Greg V (0.999 update)
Differential Revision: https://reviews.freebsd.org/D17042