Update utilities.js
Merge pull request #485 from f-mb/4.0

Update utilities.js
Check for NS_ERROR_STORAGE_CONSTRAINT in tag constraint error
Use base-mapped dates for sorting (broken in dd477e15)
Error report improvements

- Always allow "Report Errors...", even when no errors

- Show submitted diagnostic info in report

- Use white background and unitalicized text for report

- Make window larger by default
Blacklist additional errors
Merge new English strings