Fixed wrong tag update

Client seems to be allready removed out of Shine Client table when Plugin:ClientDisconnect is called therefor the " + 1 " is not needed.

Strangly this is different at a local server.
Counting errors for vote surrender fixed

GetEntitiesForTeam() returns only alive players (how useful, not), and
I'm assuming Player:GetClient() returns nil often which broke the code
removing a vote from someone leaving the team.
Merge pull request #322 from BrightPaul/patch-3

Fix for last update of reserved slots.
Merge pull request #325 from Person8880/develop

Minor but important fixes