Create us-mo-st_louis_county.json

This is for St Louis County, not the independent City of St Louis, and does not include any address in us-mo-st_louis.json.
Fixed json errors

Need to validate
Added missing quote mark on line 5

Passed JSONLint
Merge remote-tracking branch 'upstream/master'
ar-ba-buenos_aires
ar-ba-buenos_aires -- note NEEDS CHECK
change 'notes' to 'note' so tests pass
Merge pull request #759 from sbma44/ar-ba-buenos_aires

ar-ba-buenos_aires
Merge pull request #741 from OpenDataSTL/master

Create us-mo-st_louis_county.json - Pass JSONLint and TravisCI
be-wa-brussels-du & be-wa-brussels-fr
Added conform objects to four US-CA counties
Merge pull request #761 from openaddresses/more-ca-counties

Added conform objects to four US-CA counties
fixing naming of two NC sources
Merge pull request #763 from sbma44/nc-name-fix

fixing naming of two NC sources
Merge branch 'master' into be-wa-brussels
fix srs
Corrected data type for us-ca-placer_county.json

Shouldn't this be FTP? If so, sorry for my earlier mistake.
Created us-ca-lake_county.json

Situs DBF and parcel SHP provided separately via a public records request and then joined together in QGIS using an "APN" identifier according to instructions provided by a county official.
Corrected data type and filename us-ca-yolo.shp

America's greatest county
Added us-ca-sonoma_county.json