reduce default timeouts to 15s (#192)

Author: vyzo

transport/transport.go

@@ -17,12 +17,12 @@ import (
 // DialTimeout is the maximum duration a Dial is allowed to take.
 // This includes the time between dialing the raw network connection,
 // protocol selection as well the handshake, if applicable.
-var DialTimeout = 60 * time.Second
+var DialTimeout = 15 * time.Second
 
 // AcceptTimeout is the maximum duration an Accept is allowed to take.
 // This includes the time between accepting the raw network connection,
 // protocol selection as well as the handshake, if applicable.
-var AcceptTimeout = 60 * time.Second
+var AcceptTimeout = 15 * time.Second
 
 // A CapableConn represents a connection that has offers the basic
 // capabilities required by libp2p: stream multiplexing, encryption and