small fix and balance
no longer segfaults when loading unkwon commodity
system.get() now accepts factions and bools, like planet.get()
Merge branch 'master' into economy
added economy.isActive(pl) to test if pl active economically
moved news.init() so it's not called twice
amount bought/sold now auto-rounded to fit cargo
fixed typo
Reworded text slightly for the Drinking Aristocrat mission.
* system.adjacentSystems() should not return systems whose jumps are hidden or exit-only.
* Corrected an insubstantial redundant data retrieval.
* Set exclusive and required flags on core slots.
Merge commit '189ee1c2988f8314882531195217358340b87f7a'
changed order of equip_cores to equip system core first, to prevent negative cpu bug
* If the black trinity escorts die, shouldn't blow up anymore.
Merge branch 'master' of git://github.com/bobbens/naev into economy
removed old economy, put in new, where price=weighted avg of neighbor's prices and own given/prefered price
default weight to 1 (how much sys prefer own vals)
small syntax mistake
xml properly read, fixed edge case, 1way jumps ignored