Bring up of thread manager

facebook::thrift::concurrency::test.ThreadManagerTest::test00
	Launch N tasks that block for time T, verify they all complete and that the thread manager cleans up properly
	when it goes out of scope
	


git-svn-id: https://svn.apache.org/repos/asf/incubator/thrift/trunk@664725 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/lib/cpp/src/concurrency/PosixThreadFactory.cc b/lib/cpp/src/concurrency/PosixThreadFactory.cc
index bac122d..3587c03 100644
--- a/lib/cpp/src/concurrency/PosixThreadFactory.cc
+++ b/lib/cpp/src/concurrency/PosixThreadFactory.cc
@@ -92,7 +92,7 @@
     }
   }
 
-  const Runnable* runnable() const {return _runnable;}
+  Runnable* runnable() const {return _runnable;}
 
 };