Update docker-library images

- `cassandra`: 2.2.1
- `owncloud`: 8.1.2, 8.0.7, and 7.0.9

library/cassandra

@@ -6,7 +6,7 @@
 2.1.9: git://github.com/docker-library/cassandra@c7d43443c2e80ee9edd0814c8e8332781f7d93ae 2.1
 2.1: git://github.com/docker-library/cassandra@c7d43443c2e80ee9edd0814c8e8332781f7d93ae 2.1
 
-2.2.0: git://github.com/docker-library/cassandra@ebbf1631a1d8fb4072bf61a0451a5f7b901e81ab 2.2
-2.2: git://github.com/docker-library/cassandra@ebbf1631a1d8fb4072bf61a0451a5f7b901e81ab 2.2
-2: git://github.com/docker-library/cassandra@ebbf1631a1d8fb4072bf61a0451a5f7b901e81ab 2.2
-latest: git://github.com/docker-library/cassandra@ebbf1631a1d8fb4072bf61a0451a5f7b901e81ab 2.2
+2.2.1: git://github.com/docker-library/cassandra@f1324a4a0938e3eb9f6c40f2065694f4dd22f719 2.2
+2.2: git://github.com/docker-library/cassandra@f1324a4a0938e3eb9f6c40f2065694f4dd22f719 2.2
+2: git://github.com/docker-library/cassandra@f1324a4a0938e3eb9f6c40f2065694f4dd22f719 2.2
+latest: git://github.com/docker-library/cassandra@f1324a4a0938e3eb9f6c40f2065694f4dd22f719 2.2

library/owncloud

@@ -4,14 +4,14 @@
 6.0: git://github.com/docker-library/owncloud@d691efbe821094e710340aa025ff98788a7464ed 6.0
 6: git://github.com/docker-library/owncloud@d691efbe821094e710340aa025ff98788a7464ed 6.0
 
-7.0.8: git://github.com/docker-library/owncloud@4c6abd947ad841b215745ff98adece6a4e6617e2 7.0
-7.0: git://github.com/docker-library/owncloud@4c6abd947ad841b215745ff98adece6a4e6617e2 7.0
-7: git://github.com/docker-library/owncloud@4c6abd947ad841b215745ff98adece6a4e6617e2 7.0
+7.0.9: git://github.com/docker-library/owncloud@ddc40eb3f52bcff1ed638dd07ae9280bb96d0c11 7.0
+7.0: git://github.com/docker-library/owncloud@ddc40eb3f52bcff1ed638dd07ae9280bb96d0c11 7.0
+7: git://github.com/docker-library/owncloud@ddc40eb3f52bcff1ed638dd07ae9280bb96d0c11 7.0
 
-8.0.6: git://github.com/docker-library/owncloud@9407be83adf4886035585f99ecab12661fd05cf5 8.0
-8.0: git://github.com/docker-library/owncloud@9407be83adf4886035585f99ecab12661fd05cf5 8.0
+8.0.7: git://github.com/docker-library/owncloud@ddc40eb3f52bcff1ed638dd07ae9280bb96d0c11 8.0
+8.0: git://github.com/docker-library/owncloud@ddc40eb3f52bcff1ed638dd07ae9280bb96d0c11 8.0
 
-8.1.1: git://github.com/docker-library/owncloud@64c05c881fa66e9649ca8dca322c8ac01849294d 8.1
-8.1: git://github.com/docker-library/owncloud@64c05c881fa66e9649ca8dca322c8ac01849294d 8.1
-8: git://github.com/docker-library/owncloud@64c05c881fa66e9649ca8dca322c8ac01849294d 8.1
-latest: git://github.com/docker-library/owncloud@64c05c881fa66e9649ca8dca322c8ac01849294d 8.1
+8.1.2: git://github.com/docker-library/owncloud@ddc40eb3f52bcff1ed638dd07ae9280bb96d0c11 8.1
+8.1: git://github.com/docker-library/owncloud@ddc40eb3f52bcff1ed638dd07ae9280bb96d0c11 8.1
+8: git://github.com/docker-library/owncloud@ddc40eb3f52bcff1ed638dd07ae9280bb96d0c11 8.1
+latest: git://github.com/docker-library/owncloud@ddc40eb3f52bcff1ed638dd07ae9280bb96d0c11 8.1