Add app store info.
Add initial server switching implementation and feature flag.
Ensure the correct directory is loaded. Also, make sure to not close the modal until it is done appearing.
Load server list off of a server.

It uses either http://steinbrenner.mysdhc.org/teacher/0089colangelo/fliptheclassroom-servers.txt, or http://static.joshuaoldenburg.com/fliptheclassroom-servers.txt if the first one fails.
Add message about switching servers when the DNS lookup fails.
Only show the server URL if the `showurl` key is present in the JSON.
Add support for the `onlyafter` and `expireson` keys using SSToolkit.

See http://git.io/7ha7Cg for SSToolkit.
Bump to v1.0.0 (68).
Remove useless warning.
Don’t show the done button in settings and don’t refresh if the same server is chosen.
Show as a form sheet on an iPad.
Fix titling.
Bump to v1.0.0 (74).
Update app store info and readme.