SSP-2746 Filter on EA create date for all EA Case Count columns

Previously the term filter in the EA Case Count report was applied
to the EA create date for the student and total case count report
columns, but the response and closed totals were filtered on
response create and closure date respectively.

Also some report reformatting to place calculated percentages into
their own columns.

Conflicts:
	src/main/java/org/jasig/ssp/service/impl/EarlyAlertServiceImpl.java