Fixed two issues relating to json export of data

1)  See post https://groups.google.com/d/msg/orient-database/twZUd3JUtyA/DZt_orw_Mg0J
When a date field is exported it has the time field added where it should be just the date field.  I think this issue is being worked on in the underlying database to store dates without time info

2)exportClass method that is used when you make a Rest request to get info on a class was missing meta data property strictmode, added property.