Merge branch 'devel' into bigbreak

Conflicts:
	compiler/ast.nim
	compiler/nimfix/prettybase.nim
	compiler/pragmas.nim
	compiler/sempass2.nim
	doc/manual.txt
	koch.nim
	lib/pure/concurrency/threadpool.nim
	web/news.txt

doc/manual/pragmas.txt

@@ -9,6 +9,26 @@ first implementation to play with a language feature before a nicer syntax
 to access the feature becomes available.
 
 
+deprecated pragma
+-----------------
+
+The deprecated pragma is used to mark a symbol as deprecated:
+
+.. code-block:: nimrod
+  proc p() {.deprecated.}
+  var x {.deprecated.}: char
+
+It can also be used as a statement. Then it takes a list of *renamings*. The
+upcoming ``nimfix`` tool can automatically update the code and perform these
+renamings:
+
+.. code-block:: nimrod
+  type
+    File = object
+    Stream = ref object
+  {.deprecated: [TFile: File, PStream: Stream].}
+
+
 noSideEffect pragma
 -------------------
 The ``noSideEffect`` pragma is used to mark a proc/iterator to have no side