[cwvreg] Fix propertyvalues hot updates
When CWProperty instances are touched, the corresponding value gets
updated in vreg['propertyvalues'], but their type was ignored.
* {
color: #000 !important;
}
div#popupLoginBox,
div#popupLoginBox,
img#logo, div.header,
#navColumnLeft, #navColumnRight,
#footer {
display: none
}
div#pageContent{
border: none;
}