refactorings for the eval engine; bugfix: clean templates as accessors

lib/system/inclrtl.nim

@@ -1,7 +1,7 @@
 #
 #
 #            Nimrod's Runtime Library
-#        (c) Copyright 2012 Andreas Rumpf
+#        (c) Copyright 2013 Andreas Rumpf
 #
 #    See the file "copying.txt", included in this
 #    distribution, for details about the copyright.
@@ -42,3 +42,5 @@ else:
   {.pragma: inl, inline.}
   {.pragma: compilerRtl, compilerproc.}
 
+when not defined(nimsuperops):
+  {.pragma: operator.}