Revert "Command forms: Display date/time fields as UTC"

This reverts commit d10f0b7eccfc66b334affc79ad7eb9ceff9a93ff.

Conflicts:
	app/modules/Cronks/lib/js/Cronk/grid/CommandHandler.js

Refs #5713
Include timezone in servertime

Refs #5713
Provide TZ offset in Portal and use it in Duration calculation.

We calculate the offset between server and client, to calculate based
on server time.

Refs #5713
Added timezone offset handling to command datefields.

Refs #5713
Fixed offset calculation between client and server.

Javascript returns positive offsets for negative timezones.

Refs #5713
Merge branch 'fix/timezone-handling-5713' into next

Fixes #5713