Changed methods in FireGenerator to private
Added test class for FireGenerator
Added asserts to FireGenerator constructor
Added powermock dependency to pom.xml
Changed DisasterControl for new contructor

Of FireGenerator.
Changed FireProcessor to use supplied Random
Added two tests for FireGenerator
Merge branch 'test-firegenerator'

Conflicts:
	src/server/src/main/java/disastercontrol/DisasterControl.java