New welcome interface

- Removed wiki showing up on start
- Brought back the old rules interface with minor changes ( Code moved
to welcome.lua )
- New welcome interface with buttons connecting to the rules page, wiki
guides page, wiki news page ( Code moved to welcome.lua )
- Fix a long time bug whereby the respawn screen is being blocked by the
welcome interface showing up causing "ghost-like" players unable to
interact with the world nor respawn until re-entry.