Rewrite RemoveResource

Added a RemoveResource() that takes a Resource and removes it.
Added a RemoveResources() that takes a List<Resource> and removes all
resources in the list.
Merge pull request #71 from drobbs/master

Rewrite RemoveResource
MapEvent patch
Merge remote-tracking branch 'upstream/master'
Fixed stuff
Merge pull request #72 from brentspector/master

Fixed variable and string errors
Merge branch 'master' of https://github.com/GSP362DeVryNov2014/TheTraveler