adds lowercase synonyms for some constants

websocketpp/frame.hpp

@@ -64,6 +64,23 @@ union uint64_converter {
 // WebSocket Opcodes are 4 bits. See spec section 5.2
 namespace opcode {
     enum value {
+        continuation = 0x0,
+        text = 0x1,
+        binary = 0x2,
+        rsv3 = 0x3,
+        rsv4 = 0x4,
+        rsv5 = 0x5,
+        rsv6 = 0x6,
+        rsv7 = 0x7,
+        close = 0x8,
+        ping = 0x9,
+        pong = 0xA,
+        control_rsvb = 0xB,
+        control_rsvc = 0xC,
+        control_rsvd = 0xD,
+        control_rsve = 0xE,
+        control_rsvf = 0xF,
+        
         CONTINUATION = 0x0,
         TEXT = 0x1,
         BINARY = 0x2,