Online SQL Editor - MS Access features added

Added

• MS Access date literals are now also accepted (and converted to SQL date format internally).
• MS Access parameter queries are now supported (values can be entered in popup window).

Changed

• Current query is re-evaluated when the current database is changed.

Fixed

• Dates in sample db's have been fixed (time part of date has been deleted).
• Times in sample db's have been fixed (date part of time has been deleted).