Merge pull request #1 from khandelwal/master

Changed name from Ventura to Mapusaurus
Merge pull request #2 from khandelwal/master

Storing shape files for Census tracts
Start of census data app
Model for race in the census data
Initial load scripts for census race data
Some instructions
Merge pull request #3 from cmc333333/census-data

Initial Census Race Data
Merge branch 'master' of github.com:cfpb/mapusaurus