Work on UsersManual. FormEditor: Subrecords colorized, 'ord' values will be automatially computed.

index.rst: updated -  '&' is the new symbol to indicate constants.
QuickFormQuery.php: changed the defaults for Bootstrap forms again - look nicer on UZH CD Layout.
*.sql: Colorized subrecords for FormElements, ord will automatically computed, work on example forms (not finished)