Null check on FallbackValidator
Disable fallback when a new version of an item is created.

When a new language version was being created it was storing fallback
values (or empty strings) in the new version.
Enable nested fallback with language processors
Added advanced options for Lateral Fallback

Added options for clipping text at x characters and appending an
ellipsis. This requires advanced XML based config settings in the field.
See code for example.
Version 1.1.4