fixed yieldable socket.protect in etc/dispatch.lua
Merge pull request #113 from siffiejoe/yieldable_protect51

fixed yieldable socket.protect in etc/dispatch.lua
make socket.protect yieldable on Lua 5.2/5.3
Merge pull request #114 from siffiejoe/yieldable_protect52

make socket.protect yieldable on Lua 5.2/5.3