Bring all configs to the new format (#265)

The v1.0 has been released more than one month ago and the new version
is coming. It doesn't make a lot of sense to keep configuration files in
the old format anymore.
In addition to that I've also commented out all the lines enabling and
configuring "archiving" to avoid incidents like here:
https://github.com/zalando/patroni/issues/264

postgres0.yml

@@ -4,10 +4,12 @@ name: postgresql0
 
 restapi:
   listen: 127.0.0.1:8008
+  connect_address: 127.0.0.1:8008
+#  certfile: /etc/ssl/certs/ssl-cert-snakeoil.pem
+#  keyfile: /etc/ssl/private/ssl-cert-snakeoil.key
 #  authentication:
 #    username: username
 #    password: password
-  connect_address: 127.0.0.1:8008
 
 etcd:
   host: 127.0.0.1:4001
@@ -30,11 +32,11 @@ bootstrap:
 #        max_wal_senders: 5
 #        max_replication_slots: 5
 #        wal_log_hints: "on"
-        archive_mode: "on"
-        archive_timeout: 1800s
-        archive_command: mkdir -p ../wal_archive && test ! -f ../wal_archive/%f && cp %p ../wal_archive/%f
-      recovery_conf:
-        restore_command: cp ../wal_archive/%f %p
+#        archive_mode: "on"
+#        archive_timeout: 1800s
+#        archive_command: mkdir -p ../wal_archive && test ! -f ../wal_archive/%f && cp %p ../wal_archive/%f
+#      recovery_conf:
+#        restore_command: cp ../wal_archive/%f %p
 
   # some desired options for 'initdb'
   initdb:  # Note: It needs to be a list (some options need values, others are switches)