Fixed dashboard single day views
Simplified mini calendar widget date args; display correct highlighted date on mini calendar
Updated calendar widget to return more accurate groups of days in months with events; updated sidebar calendar template
Fixed sidebar calendar tr wrapping; correctly highlight current day
Distinguish between actual current day and the given relative day on sidebar calendar; removed university header css overrides
Display event date ranges correctly on mini calendar; make sure month_calendar_map maintains its declared order; check for correct relative_day date format
Added single day calendar template; updated sidebar calendar to work with frontend
merged in from calendar sidebar