Add tasks for all the new languages

Task/Echo-server/LFE/echo-server.lfe

@@ -0,0 +1,18 @@
+(defun start ()
+  (spawn (lambda ()
+           (let ((`#(ok ,socket) (gen_tcp:listen 12321 `(#(packet line)))))
+             (echo-loop socket)))))
+
+(defun echo-loop (socket)
+  (let* ((`#(ok ,conn) (gen_tcp:accept socket))
+         (handler (spawn (lambda () (handle conn)))))
+    (lfe_io:format "Got connection: ~p~n" (list conn))
+    (gen_tcp:controlling_process conn handler)
+    (echo-loop socket)))
+
+(defun handle (conn)
+  (receive
+    (`#(tcp ,conn ,data)
+     (gen_tcp:send conn data))
+    (`#(tcp_closed ,conn)
+     (lfe_io:format "Connection closed: ~p~n" (list conn)))))

Task/Echo-server/Nim/echo-server.nim

@@ -0,0 +1,18 @@
+import asyncnet, asyncdispatch
+
+proc processClient(client: AsyncSocket) {.async.} =
+  while true:
+    let line = await client.recvLine()
+    await client.send(line & "\c\L")
+
+proc serve() {.async.} =
+  var server = newAsyncSocket()
+  server.bindAddr(Port(12321))
+  server.listen()
+
+  while true:
+    let client = await server.accept()
+    discard processClient(client)
+
+discard serve()
+runForever()