Allow synchronizing EV1 and EV2 via dynamic bounds

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@29322 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Color button added for CAS style bar (#3530)

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@29323 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Fix for IE10

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@29324 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e