select raw zlib compression
select raw zlib compression

Patrick McManus from Mozilla pointed out that the spec requires a specific kind
of zlib compression, which is raw.  You can select that by using a funny api in
zlib.  Mozilla are correcting their compression to this, pywebsockets already did
it right in the first place, libwebsockets should now work OK with those.

Signed-off-by: Andy Green <e3579b1e47f273529f0f929453e939a68ede9fd1@warmcat.com>

jmillan/libwebsockets,giovanni-liboni/libwebsockets,eagafonov/libwebsockets,kaostao/libwebsockets,JoakimSoderberg/libwebsockets,mushroomgithub/libwebsockets,DaYeSquad/libwebsockets,GroundControl-Solutions/libwebsockets,davidgaleano/libwebsockets,eagafonov/libwebsockets,tn0502/libwebsockets,antmicro/libwebsockets,sartura/libwebsockets,SoapyMan/libwebsockets,kaostao/libwebsockets,jmillan/libwebsockets,tn0502/libwebsockets,lukasz-skalski/libwebsockets,peeracle/libwebsockets,peeracle/libwebsockets,mushroomgithub/libwebsockets,sanyaade-teachings/libwebsockets,maws/libwebsockets,canopy-project/libwebsockets-canopy,dtebbs/libwebsockets,mralexgray/libwebsockets-xcode,mctully/libwebsockets,Chilledheart/libwebsockets,PureSwift/libwebsockets,maws/libwebsockets,wenqiwooo/syslog-libwebsockets,pebble/libwebsockets,davidgaleano/libwebsockets,wenqiwooo/syslog-libwebsockets,sartura/libwebsockets,sartura/libwebsockets,ayosec/libwebsockets,FabianAussems/libwebsockets,pankona/libwebsockets,mralexgray/libwebsockets-xcode,pebble/libwebsockets,GroundControl-Solutions/libwebsockets,RobertoMalatesta/libwebsockets,dumganhar/libwebsockets,tvanderbruggen/libwebsockets,FabianAussems/libwebsockets,bovine/libwebsockets-bovine,Chilledheart/libwebsockets,labatrockwell/libwebsockets,abligh/libwebsockets,RobertoMalatesta/libwebsockets,tn0502/libwebsockets,PureSwift/libwebsockets,mushroomgithub/libwebsockets,ayosec/libwebsockets,pankona/libwebsockets,mushroomgithub/libwebsockets,tn0502/libwebsockets,ayosec/libwebsockets,weimingtom/libwebsockets,IOPOINT/libwebsockets,DaYeSquad/libwebsockets,GroundControl-Solutions/libwebsockets,SoapyMan/libwebsockets,tvanderbruggen/libwebsockets,DaYeSquad/libwebsockets,JoakimSoderberg/libwebsockets,IOPOINT/libwebsockets,gameclosure/libwebsockets,wenqiwooo/syslog-libwebsockets,ralight/libwebsockets,RobertoMalatesta/libwebsockets,labatrockwell/libwebsockets,IOPOINT/libwebsockets,lipp/libwebsockets-exp,eagafonov/libwebsockets,mralexgray/libwebsockets-xcode,dtebbs/libwebsockets,mctully/libwebsockets,pankona/libwebsockets,ralight/libwebsockets,cambridgehackers/libwebsockets,bovine/libwebsockets-bovine,FabianAussems/libwebsockets,JoakimSoderberg/libwebsockets,lukasz-skalski/libwebsockets,giovanni-liboni/libwebsockets,davidgaleano/libwebsockets,SoapyMan/libwebsockets,PureSwift/libwebsockets,kaostao/libwebsockets,arteme/libwebsockets,turbulenz/libwebsockets,gameclosure/libwebsockets,bovine/libwebsockets-bovine,tvanderbruggen/libwebsockets,tvanderbruggen/libwebsockets,sanyaade-teachings/libwebsockets,cambridgehackers/libwebsockets,cambridgehackers/libwebsockets,SoapyMan/libwebsockets,jmillan/libwebsockets,pebble/libwebsockets,lukasz-skalski/libwebsockets,sanyaade-teachings/libwebsockets,mralexgray/libwebsockets-xcode,pombredanne/libwebsockets,peeracle/libwebsockets,labatrockwell/libwebsockets,lukasz-skalski/libwebsockets,GroundControl-Solutions/libwebsockets,abligh/libwebsockets,jmillan/libwebsockets,kaostao/libwebsockets,GroundControl-Solutions/libwebsockets,antmicro/libwebsockets,abligh/libwebsockets,pombredanne/libwebsockets,pombredanne/libwebsockets,pebble/libwebsockets,arteme/libwebsockets,sartura/libwebsockets,antmicro/libwebsockets,sanyaade-teachings/libwebsockets,ayosec/libwebsockets,ralight/libwebsockets,lipp/libwebsockets-exp,gameclosure/libwebsockets,dtebbs/libwebsockets,canopy-project/libwebsockets-canopy,bovine/libwebsockets-bovine,dtebbs/libwebsockets,arteme/libwebsockets,ralight/libwebsockets,dumganhar/libwebsockets,turbulenz/libwebsockets,weimingtom/libwebsockets,abligh/libwebsockets,weimingtom/libwebsockets,wenqiwooo/syslog-libwebsockets,gameclosure/libwebsockets,dumganhar/libwebsockets,pankona/libwebsockets,PureSwift/libwebsockets,SoapyMan/libwebsockets,mctully/libwebsockets,pombredanne/libwebsockets,giovanni-liboni/libwebsockets,DaYeSquad/libwebsockets,ralight/libwebsockets,ayosec/libwebsockets,turbulenz/libwebsockets,FabianAussems/libwebsockets,dumganhar/libwebsockets,Chilledheart/libwebsockets,giovanni-liboni/libwebsockets,Chilledheart/libwebsockets,antmicro/libwebsockets,labatrockwell/libwebsockets,DaYeSquad/libwebsockets,maws/libwebsockets,RobertoMalatesta/libwebsockets,peeracle/libwebsockets,tvanderbruggen/libwebsockets,davidgaleano/libwebsockets,eagafonov/libwebsockets,cambridgehackers/libwebsockets,peeracle/libwebsockets,sartura/libwebsockets,dumganhar/libwebsockets,sartura/libwebsockets,maws/libwebsockets,sartura/libwebsockets,PureSwift/libwebsockets,weimingtom/libwebsockets,lipp/libwebsockets-exp,JoakimSoderberg/libwebsockets,canopy-project/libwebsockets-canopy