Add Apache License 2.0 description in ../conf.py
Add Apache License 2.0 description in ../conf.py

Add the Apache License 2.0 description in ../conf.py which
is necessary.

Change-Id: Ief3767fdc22f582beb8683a9075dc25dbcb541cd

tipabu/swift,swiftstack/swift,notmyname/swift,tipabu/swift,psachin/swift,tipabu/swift,nadeemsyed/swift,nadeemsyed/swift,openstack/swift,nadeemsyed/swift,clayg/swift,clayg/swift,smerritt/swift,notmyname/swift,openstack/swift,psachin/swift,notmyname/swift,openstack/swift,clayg/swift,matthewoliver/swift,smerritt/swift,psachin/swift,swiftstack/swift,clayg/swift,matthewoliver/swift,matthewoliver/swift,tipabu/swift,notmyname/swift,redbo/swift,smerritt/swift,matthewoliver/swift,smerritt/swift,swiftstack/swift,nadeemsyed/swift,psachin/swift,redbo/swift,openstack/swift