General rule for the Web: we should not measure anything in PT (except if we do our CSS for print media), but instead, in PX

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@36326 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
#4541 - setting rtl language input bar fix

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@36327 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
NPE fix #4530

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@36328 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Workaround for column width

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@36329 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e