Add a script that migrates the base layer names

Address #493
Update the script to use a bulk update
Update the json field so the GeoExplorer gets the correct title for
the base layers
Merge branch 'master' of github.com:opengeo/mapstory
initial incomplete work on grabbing name and email from external social services
Switch to pipeline based method for grabbing url
Continued work on grabbing avatars from external social services
Dont save the avatar twice
disable social login by default
profile form - email to top and required
make activity tag return blank
Merge pull request #628 from jj0hns0n/issue-611

Grab avatar from external social services and store locally
Merge pull request #494 from opengeo/fixBaseLayerScript

Add a script that migrates the base layer names
Merge branch 'master' of github.com:opengeo/mapstory
fix broken test from e66e0fd0
Merge branch 'master' into integration