fixed a problem when a channel blocking read was bigger than size of buffer  + window
fixed a problem when a channel blocking read was bigger than size of buffer 
+ window


git-svn-id: b1dee0d48e635e16c3b356ce77271b225d4db9f7@178 7dcaeef0-15fb-0310-b436-a5af3365683c

mwgoldsmith/ssh,DouglasHeriot/libssh,kedazo/libssh,Distrotech/libssh,rofl0r/libssh,bigcat26/libssh-mod,DouglasHeriot/libssh,miloj/libssh-v0.5,robxu9/libssh,elastichosts/libssh,nviennot/libssh,mwgoldsmith/libssh,wangshawn/libssh,sebadoom/libssh,pouete/libssh,bigcat26/libssh-mod,nviennot/libssh,taikoo/libssh,DouglasHeriot/libssh,wangshawn/libssh,sebadoom/libssh,substack/libssh,sebadoom/libssh,nviennot/libssh,DouglasHeriot/libssh,jahrome/libssh,taikoo/libssh,pouete/libssh,pouete/libssh,bigcat26/libssh-mod,miloj/libssh-v0.5,taikoo/libssh,miloj/libssh-v0.5,kedazo/libssh,jahrome/libssh,mwgoldsmith/libssh,rofl0r/libssh,jt1/honeypot-libssh,miloj/libssh-v0.5,Distrotech/libssh,substack/libssh,pouete/libssh,substack/libssh,jt1/honeypot-libssh,wangshawn/libssh,mwgoldsmith/ssh,jahrome/libssh,taikoo/libssh,kedazo/libssh,jahrome/libssh,mwgoldsmith/ssh,mwgoldsmith/libssh,mwgoldsmith/libssh,kedazo/libssh,jt1/honeypot-libssh,rofl0r/libssh,bigcat26/libssh-mod,mwgoldsmith/ssh,sebadoom/libssh,elastichosts/libssh,rofl0r/libssh,Distrotech/libssh,Distrotech/libssh,substack/libssh,robxu9/libssh,elastichosts/libssh,robxu9/libssh,jt1/honeypot-libssh,nviennot/libssh,wangshawn/libssh,robxu9/libssh