fixes #243: time zone issue under comments information of FAQ and Trouble Ticket
Contact and Product Image, are not mandatories.

If we have this fields in $mandatory_fields array, after we can edit their properties in
Layout Editor. And if for accident you try to save the properties for these fields the typeofdata
to M was forced
fixes #244: javascript error when trying to import a module with no mandatory fields
fixes #245: When using reference fields in update field workflows, the internal id value is returned
Merge branch 'master' of http://github.com/tsolucio/corebos
code cleanup and formatting
fixes #4668: Detectado un problema con los filtros de fecha en informes. code formatting
Merge remote-tracking branch 'upstream/master'