[web] Add datadir-url configuration option (closes #5204550)
Makes it possible to use a different host for static data instead of ${base_url}/data
* {
color: #000 !important;
}
div#popupLoginBox,
div#popupLoginBox,
img#logo, div.header,
#navColumnLeft, #navColumnRight,
#footer {
display: none
}
div#pageContent{
border: none;
}