work on FactSelector (Callback + tests)
Change format of cubes&measures
Add callback to change cube and measure

+ rename hierachies to hieraRchies
Debug Display callback and correct Query fixture
Change call to Query when drilling down
Merge pull request #36 from loganalysis/feature-FactSelectorCallBack

Conflicts:
	geonode/analytics/static/analytics/js/Display.js
	geonode/analytics/static/analytics/js/Query.js
	geonode/analytics/static/analytics/js/tests/QUnitRunnerQuery.html