Hit the inferSchema and overview gitHistogram endpoints in populateGirder.py
Hit the inferSchema and overview gitHistogram endpoints in populateGirder.py

Improves performance when users are logged out (storing cached histograms requires write access)

ronichoudhury-work/resonantlab,ronichoudhury-work/resonantlab,ronichoudhury-work/resonantlab,ronichoudhury-work/resonantlab