markerlib -> _markerlib

--HG--
branch : distribute
extra : rebase_source : d44490f6b809c93eb9b20409862ea28a3f039aae

_markerlib/__init__.py

 try:
     import ast
-    from markerlib.markers import default_environment, compile, interpret
+    from _markerlib.markers import default_environment, compile, interpret
 except ImportError:
     if 'ast' in globals():
         raise