Add tasks for all the new languages

Task/Anonymous-recursion/Swift/anonymous-recursion-2.swift

@@ -0,0 +1,10 @@
+let fib: Int -> Int = {
+  var f: (Int -> Int)!
+  f = { n in
+    assert(n >= 0, "fib: no negative numbers")
+    return n < 2 ? 1 : f(n-1) + f(n-2)
+  }
+  return f
+}()
+
+println(fib(8))