* Bug fix: Some qasm extensions were missing in the setup.py

* Bumped to version: 0.4.2

Author: atilag

setup.py

@@ -26,6 +26,8 @@
             "qiskit.dagcircuit",
             "qiskit.extensions",
             "qiskit.extensions.standard",
+            "qiskit.extensions.qiskit_simulator",
+            "qiskit.extensions.quantum_initializer",
             "qiskit.mapper",
             "qiskit.qasm",
             "qiskit.qasm._node",
@@ -78,7 +80,7 @@ def compile():
 
 setup(
     name="qiskit",
-    version="0.4.1",
+    version="0.4.2",
     description="Software for developing quantum computing programs",
     long_description="""QISKit is a software development kit for writing
         quantum computing experiments, programs, and applications. Works with