Quickfix for some missing hints on some pages (#62).

This patch removed the dimension check for the hinted element. There are
cases, where the hinted element ha no height but contains dimensioned child
nodes. At the moment it's hard to work out the right logic when a none
dimensioned hint element should be hinted or not.
Fixed nextpattern to js value conversion (#62).

The prev- and nextpatterns can't be given to JavaScript as strings that are
split on the ',' to be interpreted as regular expression. So the patterns have
to be given as array of RegExp objects instead.