change name from pub/subscribe to post/accept

test/testping.lua

@@ -4,14 +4,14 @@ local snax = require "snax"
 skynet.start(function()
 	local ps = snax.newservice ("pingserver", "hello world")
 	print(ps.req.ping("foobar"))
-	print(ps.pub.hello())
+	print(ps.post.hello())
 	print(pcall(ps.req.error))
 	print("Hotfix (i) :", snax.hotfix(ps, [[
 
 local i
 local hello
 
-function subscribe.hello()
+function accept.hello()
 	i = i + 1
 	print ("fix", i, hello)
 end
@@ -23,7 +23,7 @@ function hotfix(...)
 end
 
 	]]))
-	print(ps.pub.hello())
+	print(ps.post.hello())
 	print(snax.kill(ps,"exit"))
 	skynet.exit()
 end)