Portico v0.7.1 Released

Hot on the heels of the Portico v0.7 release, we discovered an annoying little bug that causes updateAttributeValues (with time) calls in the C++ interface to be ignored. If you want a better description of the bug, see http://forums.porticoproject.org/viewtopic.php?p=497#497.

This update is _HIGHLY_ recommended for anyone who uses the C++ interface. I apologise for any inconvenience.