add doubleClick to MaterialListElement

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@28099 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
make sure that the RadioButtons and the special keys in the InputDialog are only shown if required.

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@28100 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Ticket #3485: undone my changes as they seem to slow things down

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@28101 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
data-param-allowSymbolTable works (#3585)

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@28102 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e