Rewrite _curl() to download only 5000 bytes of document, if $limit is set
Rewrite _curl() to download only 5000 bytes of document, if $limit is set

Signed-off-by: Andrew Phelps <02e0a999c50b1f88df7a8f5a04e1b76b35ea6a88@phel.ps>

niemanlab/openfuego,mAAdhaTTah/openfuego,brainsparker/openfuego,CalleHunefalk/openfuego