World Objects:
1) Changed the function 'random_object' to eliminate the possibility of generating more than one world object per tile.
2) Replaced old logic for mining resources with newer, tidier logic.
4) Added documentation for static method "dropoff"

Scouting:
1) Changed the format of the cache string used to save a player's vision in a specific tile.

==NEXT UP==
1) Add an option from the map interface to send ships on resource collection missions.
Merge branch 'master' of https://github.com/allencct/Dvorak
War Engine Extension:
1) Added an option from the map interface to send ships on resource collection missions ("Harvest").

Misc:
1) Tweaked the code Brian wrote to refresh the map tiles after scouting missions occur in javascript/job_queue.js. Should be fully operational now.