Add a server tag

- Added an automatic server tag, 'shine'. You don't have to have it, but
it would be nice for me to know which servers run this.
- Cleaned up some silly stuff in the client side votemenu files.
Restructured core folder

Now it makes more sense.
Fixed issues with Build 242

- Screen text network messages weren't always being sent.
- Hooks weren't returning their old functions where the return value was
being used.
- Pregame and voterandom plugins were not resetting player scores.
- Timers print their stack trace on error.
Merge pull request #47 from Person8880/develop

Build 242 fixes