SSP-1093 Migrate to date-only journal entry dates

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

f063372f8700eb308bb85a9de22064dcdc1c7230 --
The meat commit, with a trivial master change log fix up. We're skipping
another changeset.

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

e0e1fd3b0faf7e88d77ee19775d85d454cd30796 --
Use server time for default journal entry date

285c904925c7cc2ffe7d7ea6fb50a66feee0779d --
Add tooltips for journal entry date fields