INT-2159: Compare content using the current outputFormat

[jscasca]

The wrapper is comparing the content of the Editor ignoring the current outputFormat resulting in the caret jumping back to the beginning of the document after every stroke

Fixes #147

[jscasca]

This is a temporal fix while we review the whole 'controlled component' deal

[glennpenridge]

FWIW, what you've written makes sense to me if you're stopping the editor content from being overwritten on every change; especially if they're using text instead of html on modelEvents.