touchMove: prevent selected elements jump to the center of the view (before dragging)

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@26923 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
changes of enable/disable saveButton

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@26924 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Windows gui without header again

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@26925 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
change visibility of cancelButton

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@26926 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e