Change Mongo collection name to "endpoints"
Add endpoint creation route
Use nicer URL param specification
Make JSON quoting consistent
Add GET support to endpoints
Add PUT to update endpoints
Make install script actually work.

Right now you have to do

`curl HOST/install/name > tmp.sh && sh tmp.sh`

rather than just piping to sh so I don't know.
Remove script after it is GETed once
Update status codes and messages
Add DELETE method for endpoint
Add uninstall script
Add bcrypt to hash passwords
Fix typo in install/uninstall scripts