Make the default setLimit from the hst2 core configurable if another default is wanted

It might be for example much more efficient to lower the default from 1000 to 100, or even 10, and only where you want a larger limit, set this limit.

In case of some archives, which for example have sliding pages, and you do not need to tell upfront how many there are, increasing the setLimit with increasing pagenumber is really efficient.