[cas] fix for eg f(x):=x -> Integral -> plot gives Integral[f,f]

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@26897 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Resize the iframe in Worksheet GUI correctly

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@26898 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
InputDialog (redefine)

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@26899 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e