cyclades: Rename option

Rename '--allocation-pools' option to '--allocation-pool'.

snf-cyclades-app/synnefo/api/management/commands/network-create.py

@@ -129,7 +129,7 @@ class Command(BaseCommand):
             metavar="True|False",
             help="Use the network as a Floating IP pool."),
         make_option(
-            '--allocation-pools',
+            '--allocation-pool',
             dest='allocation_pools',
             action='append',
             help="IP allocation pools to be used for assigning IPs to"

snf-cyclades-app/synnefo/api/management/commands/subnet-create.py

@@ -58,7 +58,7 @@ class Command(BaseCommand):
                          " networks of a user, use snf-manage network-list"),
         make_option("--cidr", dest="cidr",
                     help="The CIDR of the subnet, e.g., 192.168.42.0/24"),
-        make_option("--allocation-pools", dest="allocation_pools",
+        make_option("--allocation-pool", dest="allocation_pools",
                     action="append",
                     help="IP allocation pools to be used for assigning IPs to"
                     " VMs. Can be used multiple times. Syntax: \n"