HYDRA-134: Now use the ErrorHandler class to track unsupported (or insufficiently implemented) features that require use of our image fallback logic.
HYDRA-134: Set the minimium PDF.JS log level to "ERRORS" to silence TODO statements and anything less than an error.
Merge pull request #8 from WebFilings/rj/HYDRA-134

HYDRA-134: Call textMetrics.finishAndCreateNewPage when we throw an error