Fixing mathquill jQuery assumptions.
Fixing mathquill jQuery assumptions.

Signed-off-by: David Canas <aa743a0aaec8f7d7a1f01442503957f4d7a2d634@learningequality.org>

fle-internal/content-curation,jayoshih/content-curation,fle-internal/content-curation,fle-internal/content-curation,jayoshih/content-curation,jayoshih/content-curation,DXCanas/content-curation,DXCanas/content-curation,DXCanas/content-curation,jayoshih/content-curation,DXCanas/content-curation,fle-internal/content-curation