Merge: Websockets

Added support for Websockets in lib, fixed a few issues with Sockets.
Also added a Websocket compatible version of the debugger.

Closes #206
Closes #204
Pull-Request: #377
Reviewed-by: Jean Privat <jean@pryen.org>
Reviewed-by: Alexis Laferrière <alexis.laf@xymus.net>

diff --cc lib/standard/string.nit
index e1efccd,2ba5772..25996c2
--- 1/lib/standard/string.nit
--- 2/lib/standard/string.nit
+++ b/lib/standard/string.nit
@@@ -1325,9 -1342,18 +1326,18 @@@ redef class Boo
  end
  
  redef class Int
+ 
+       # Wrapper of strerror C function
+       private fun strerror_ext: NativeString is extern `{
+               return strerror(recv);
+       `}
+ 
+       # Returns a string describing error number
+       fun strerror: String do return strerror_ext.to_s
+ 
        # Fill `s` with the digits in base `base` of `self` (and with the '-' sign if 'signed' and negative).
        # assume < to_c max const of char
 -      fun fill_buffer(s: Buffer, base: Int, signed: Bool)
 +      private fun fill_buffer(s: Buffer, base: Int, signed: Bool)
        do
                var n: Int
                # Sign