Server switcher gets player counts

It's liable to break if where I get it from changes their page layout,
but otherwise it should be fine.
Fallback after 2 ELO fails in a row

If the connection to NS2Stats fails twice in a row, then the balance
mode will be set to the fallback mode for the rest of the map.
Adverts support colours and more

Can use chat based or adverts at the top or bottom of the screen.
Redirect method can now check for slots

It will require a different format in the config file, but it can now
check multiple servers for slots and try and send a player to the best
one.
Changed default map vote settings

Next map vote is best at the end of the map.
Altered query method, fix small bug

Strange bug with the PlayerSay hook, but it shouldn't happen again now.
Update default configs to reflect changes

Adverts and reserved slots default configs now conform to the latest
format, old config files will still work.
Merge pull request #143 from Person8880/develop

Revision 100!