[gen/wiki/oar] Move network_address from hiearchy to misc properties

Because 'network_address' is now blocked by the resource hierarchy
safeguard.

I checked: no user used it in the oarsub `-l` part til now, and no
documentation use it either.

'host' must be used, or 'nodes'.

'network_address' can still be used as a property filter in oarsub (but
using 'host' is shorted to write for the same result).

lib/refrepo/gen/wiki/generators/oar_properties.rb

@@ -194,9 +194,9 @@ class OarPropertiesGenerator < WikiGenerator
   #Group properties by categories
   @@categories = {
     "Job-related properties" => ["besteffort", "deploy", "production", "cluster_priority", "max_walltime"],
-    "Hierarchy" => ["chassis", "cluster", "cpu", "cpuset", "core", "disk", "diskpath", "gpu", "gpudevice", "host", "network_address", "slash_[16-22]", "switch", "subnet_address", "subnet_prefix", "vlan"],
+    "Hierarchy" => ["chassis", "cluster", "cpu", "cpuset", "core", "disk", "diskpath", "gpu", "gpudevice", "host", "slash_[16-22]", "switch", "subnet_address", "subnet_prefix", "vlan"],
     "Hardware" => ["gpu_model", "gpu_count", "memnode", "memcore", "memcpu", "disktype", "disk_reservation_count", "myri_rate", "myri_count", "myri", "ib_rate", "ib_count", "ib", "opa_rate", "opa_count", "eth_rate", "eth_count", "cpufreq", "cputype", "cpucore", "cpuarch", "virtual", "mic"],
-    "Miscellaneous" => ["wattmeter", "nodemodel", "ip", "type", "expiry_date", "comment", "maintenance"]
+    "Miscellaneous" => ["wattmeter", "nodemodel", "network_address", "ip", "type", "expiry_date", "comment", "maintenance"]
   }
 
   #Existing properties that won't be documented