[giac] fix for 10^0

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@24475 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
show title in textbox in SaveDialog, bug fixed, added changeHandler (fileList)...

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@24476 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
move XMLBuilder.java from /gui/elements/header to /touch/utils

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@24477 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e