Fixing JSNI calls for IE pinch zoom

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@29841 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
[giac]: detect 2nd order linear diffeq with cst coeff before other 2nd order linear diffeq

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@29842 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e