Added name of license file in setup.py

Author: tcalmant

setup.py

@@ -56,6 +56,7 @@ def read(fname):
     name="iPOPO",
     version=__version__,
     license="Apache License 2.0",
+    license_file="LICENSE",
     description="A service-oriented component model framework",
     long_description=read("README.rst"),
     author="Thomas Calmant",