Merge !1178 (merged) first.
This saves the value of netvars before joining netgames, then reverts when leaving. This should allow netvars to be saved by servers without client configs being affected.
As a client: When saving a config, the old value of a netvar is saved. When loading a config, changes to netvars apply after leaving the netgame.
These netvars are now saved:
dumpconsistency teamscramble respawnitem
allowjoin scrambleonchange flagtime
joinnextround friendlyfire tv_recycler
restrictskinchange overtime tv_teleporter
allowteamchange pointlimit tv_superring
startinglives timelimit tv_supersneaker
respawndelay basenumlaps tv_invincibility
competitionboxes allowexitlevel tv_jumpshield
allowseenames inttime tv_watershield
matchboxes coopstarposts tv_ringshield
specialrings cooplives tv_forceshield
powerstones advancemap tv_bombshield
countdowntime playersforexit tv_1up
touchtag exitmove tv_eggmanbox
hidetime pausepermission
autobalance respawnitemtimeThese previously only saved cvars are now netvars:
showjoinaddress rejointimeout maxsend jointimeout servername
maxplayers resynchattempts noticedownload maxping
joindelay blamecfail downloadspeed pingtimeout