use 'using' instead of 'sig' keyword; cleans up new features a bit

web/news.txt

@@ -16,20 +16,34 @@ Changes affecting backwards compatibility
   ``table.mpairs`` iterator only the returned values can be modified, no
   longer the keys.
 - The deprecated Nim shebang notation ``#!`` was removed from the language. Use ``#?`` instead.
+- The ``using`` statement now means something completely different. You can use the
+  new experimental ``this`` pragma to achieve a similar effect to what the old ``using`` statement tried to achieve.
+- Typeless parameters have been removed from the language since it would
+  clash with ``using``.
 
 
 Library Additions
 -----------------
 
 - The rlocks module has been added providing reentrant lock synchronization
-  primitive
+  primitive.
 
 Compiler Additions
 ------------------
 
 - Added a new ``--noCppExceptions`` switch that allows to use default exception
   handling (no ``throw`` or ``try``/``catch`` generated) when compiling to C++
-  code
+  code.
+
+Language Additions
+------------------
+
+- Nim now supports a ``.this`` pragma for more notational convenience.
+- Nim now supports a different ``using`` statement for more convenience.
+- Nim now supports ``partial`` object declarations to mitigate the problems
+  that arise when types are mutually dependent and yet should be kept in
+  different modules.
+
 
 2016-01-27 Nim in Action is now available!
 ==========================================