Merge pull request #671 from arnavkagrawal/master

fixed broken link /msg/twitter_search
GIS: PoIs started
member, Staff & Volunteer XLS exports break person_id into
first/middle/last to match import format, Staff/Volunteer record tab don't
include person_id widget, Volunteer Awards merged into CV tab, Members
migrated to S3Filter (1 more step towards S3Search deprecation)
HRM Summary Views shoulodn't filter out Vols & should style features
properly
Merge pull request #672 from arnavkagrawal/master

PH centering site on map