Ticket #3092: there was a bug in MathQuill (not only in its porting)

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@23873 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
update JLaTeXMath (http://forge.scilab.org/index.php/p/jlatexmath/issues/1051/)

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@23875 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e