a1e7eb6360
SVG attributes are case sensitive and some have upper case letters in them This change ensures that we can identify these, when being used with the `ng-attr` directive, by encoding upper case letters with a preceding underscore. For example to apply `ng-attr` to the `viewBox` attribute we could write `ng-attr-view_box` - or any of the other variants: `ng:attr:view_box`, `data-ng-attr-view_box`, etc. Closes #9845 Closes #10194