Feature request: Add user defaults

[Pukkahq]

When adding a "user" allow system wide default setting for "Usage location"

[KelvinTegelaar]

Good one. @redanthrax was speaking about adding cookies recently and I am thinking we'll have to for this feature. We can't and don't want to store any info server side.

[dbeta]

Instead of cookies, shouldn't you use local storage for this? Local storage isn't sent back to the server ever, so it further separates Client and Server.

[KelvinTegelaar]

Used localstorage, it no reuses the last location when you refresh; this also makes it each if you're adding users in bulk that need a different location.