Fixed issue that prevented editing of related entities over a https-secured page
Increased version numbers to 06.03.04
Show more infos about the error if app import fails
Added nicer error message when app installation fails.
Minor corrections in package manifest
Fixed: Required hyperlink field shows invalid message as soon as the form is open (before the user can input something)
Fixed issue: Enhance "required" field support
Font color of required field indicator is sometimes red (on a red background)
Fixed validation of number fields
Merge branch '2sxc-6.4' into SimpleDataImportExport