PropertyGrid, Tweaks, Bugfixes
#ADD: EditorHintRange attribute now has an optional overload for specifying limiting and reasonable ranges separately.
#ADD: NumericPropertyEditors now provide a min/max value bar, if a reasonable range is specified.
#CHANGE: Cleaned up Transform attributes and modified RigidBody attributes.
#FIX: Fixed occasional exception in XmlFormatter when serializing an array that contained only null values.
#FIX: Fixed applying of numeric EditorHint attributes when provided via overload.