- Added per-player resource pool and modified the GUI and entity scripts
to work with it.
- Modified unit creation functions so the unit is always assigned a
player before firing its initialize event, so that this event can deduct
population, etc from the right player.
- Fixed various small bugs, like a unit not cancelling all of its queued
items when it dies, or buildings not costing anything.
This was SVN commit r3998.
