Added a few things

- RTV votes can be configured to end early if a percentage of all
players have voted.
- You can set Shine to refresh users from the web in a fixed interval
automatically using the two new config options, "RefreshUsers" and
"RefreshInterval".
- Fixed an annoyance/bug where reloading users mid-game from the web
would wipe the user data if the web request failed. It now keeps hold of
the old data instead.
Fixed chat hiding text starting with special char

Was intended to hide misspelt chat commands, but I forgot about
characters other than ! or /.
Merge pull request #36 from Person8880/develop

Added a few things and fixed all messages starting with non-alphanumeric characters being hidden.