Enhancement

• Support thread context (9214411) (@matyhtf)
• Generate a warning if the channel has producers or consumers when the program exits (b9f37d9) (@twose)

Fixed

• Fixed reactor send bug (a1dc95f) (@matyhtf)
• Fixed event init bug (907c84b) (@matyhtf)
• Fixed crash on Cygwin (cfb7479) (@matyhtf)
• Fixed wrong length of string (c4f9799) (@twose)