Play button is visible on the focused eulicidan view - in desktop application. (#3820)

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@30325 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
SolveODE fixes

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@30326 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Play button is visible only on the focused euclidian view - on web application. (related with #3820)

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@30328 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
[giac] bugfix: 4.4%

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@30330 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e