Teammate switching team reported on chat

Teammate switching team reported on chat and console.
Solved also:
Function OnCharacterDeath() calls itself multiple time. Open team after checking it is not opened, then kill members.
Update teams.cpp
Don't clear rcon history when connecting to new server
Clean up compiler warnings
Change new to mem_alloc (thanks BeaR)
Fix compiler settings for cl
Merge pull request #68 from cinaera/pr_compiler

Fix compiler settings for cl
Mouse button 2 to decrease FSAA samples in menu
remove basetile
Merge branch 'DDRace64' of https://github.com/def-/ddnet into DDRace64
clean up automapper
Add editor icon for audio source
Merge pull request #70 from timgame/DDRace64

remove basetile
Merge pull request #71 from cinaera/pr_speaker

Add editor icon for audio source
Merge pull request #60 from Wohoo-GC/DDRace64

Teammate switching team reported on chat
Revert "Update teams.cpp"

This reverts commit fa59910ef295e567533cd31725474cf38785af69.
Revert "Teammate switching team reported on chat"

This reverts commit b19688fa35a3de49fa7f3829f7f3f6beb54dd7c9.
save doesn't create ranks accidentally anymore (fixes #73)
Another try at the fix
Merge branch 'DDRace64' of github.com:def-/ddnet into DDRace64