Javadoc

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@26819 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
[cas] fixes for #3250 and #3439

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@26820 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Removing unnecessary files


git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@26821 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e