Add Indigo as a build range marker color
Mine resources instead of using build points.

- Added two new structures: the Leech for aliens and the Mine for humans.
- Build points are no longer queued.
- Can build as many structures as long as resources are available.
- g_totalResources and g_mineRate can be adjusted to tweak mining frequency and amount.
Merge branch 'master' into resources

Conflicts:
	src/gamelogic/game/g_buildable.c
Subtract the cost of buildings from the total available team resources
Only search for buildables when searching for nearby RGSs
Merge branch 'master' into resources
Give back resources for reverted buildings
Only mine if powered
Merge branch 'master' into resources

Conflicts:
	src/gamelogic/cgame/cg_buildable.c
	src/gamelogic/cgame/cg_main.c
Don't consume resources when reverting deconstructed/destroyed buildings.
Don't discard unadded decimal portion of queued resources
Add a function to queue resources
Subtract resources for repairing buildings
Merge branch 'resources' of github.com:Unvanquished/Unvanquished into resources

Conflicts:
	src/gamelogic/game/g_buildable.c
Resources removed instantly when removing an int amount
Merge branch 'master' into resources
Marked buildings only give the percentage of their worth based on their health
Fix marked buildables. Also remove unnecessary parameters from build point functions.
Merge branch 'master' into resources
Merge branch 'master' into resources