SSP-1092 Migrate to date-only ODS in/eligibility letter dates.

Also now use server-time for ODS registration date.

Added tool tips to each field to try to explain how timezones are
being handled for these fields.

This is a squashed cherry-pick of three commits, plus the usual
aggr/min js fix-up:

a4ee1da355e28ef0dccada75ec29bffbf2c1a9aa --
The meat commit. Had expected conflicts in master change logs. We're
skipping another changeset.

Conflicts:
	src/main/resources/org/jasig/ssp/database/masterChangeLog.xml
	src/test/resources/org/jasig/ssp/database/masterChangeLog-test.xml

d2c0826f038a4a59777e535228e1cc155495d1c2 --
Fix ineligibility letter date tool tip text

fd47c5247c035c1f9b69ecefc2427e767223f7cb --
Set DATE TemporalType on ODS in/eligibility letter dates