Construction navigation panel moved from App to GuiManager

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@28000 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Undoing test changes

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@28001 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Interface for AlgoDependentCasCell

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@28002 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e