Merge pull request #19 from tlpinney/master

Add Alabama data source
Remove accidental commit of download/.
Merge branch 'master' of github.com:osmlab/addresses
Break connectors into their own file, remove them from download function.
Don't use availability at all anymore.
Don't pass test object deep into function hierarchy.
Don't download MapServer / FeatureServer for now.
Shave off the protocol.
Write txt file for each export. Ref #20.
Remove until https://github.com/osmlab/addresses/issues/22 is resolved.
Update Indiana.yaml
Update Colorado.yaml
Update Colorado.yaml
Update Idaho.yaml
Update Alabama.yaml
Update Florida.yaml
Create South Carolina.yaml
Update Virginia.yaml
Update Massachusetts.yaml
Update Wisconsin.yaml