Remove broken counter-missile weapon type (probably never worked).
Move max extra travel distance from missed projectiles to stats loading code.
Move number of building modules (its "capacity") to parent class,
simplifying a great deal of code.
Remove unused file multiplay/maps/4c-rush/templ.bjo.
Add teams mode without shared research.
Make sure AIs do not disregard a research topic an ally is researching
in fixed alliance no-sharing mode.