[nancy] grimoire, graoully, grisou - Set kavlan option to true

data/grid5000/sites/nancy/clusters/graoully/graoully.json

 {
   "created_at": "Sun, 03 Jan 2016 23:00:00 GMT",
-  "kavlan": false,
+  "kavlan": true,
   "model": "Dell PowerEdge R630",
   "queues": [
     "admin",

data/grid5000/sites/nancy/clusters/grimoire/grimoire.json

 {
   "created_at": "Thu, 21 Jan 2016 23:00:00 GMT",
-  "kavlan": false,
+  "kavlan": true,
   "model": "Dell PowerEdge R630",
   "queues": [
     "admin",

data/grid5000/sites/nancy/clusters/grisou/grisou.json

 {
   "created_at": "Sun, 03 Jan 2016 23:00:00 GMT",
-  "kavlan": false,
+  "kavlan": true,
   "model": "Dell PowerEdge R630",
   "queues": [
     "admin",

generators/input/sites/nancy/clusters/graoully/graoully.rb

@@ -3,7 +3,7 @@ site :nancy do |site_uid|
   cluster :graoully do |cluster_uid|
     model "Dell PowerEdge R630"
     created_at Time.parse("2016-01-04").httpdate
-    kavlan false
+    kavlan true
     queues ['admin', 'testing']
 
     16.times do |i|

generators/input/sites/nancy/clusters/grimoire/grimoire.rb

@@ -3,7 +3,7 @@ site :nancy do |site_uid|
   cluster :grimoire do |cluster_uid|
     model "Dell PowerEdge R630"
     created_at Time.parse("2016-01-22").httpdate
-    kavlan false
+    kavlan true
     queues ['admin', 'testing']
 
     8.times do |i|

generators/input/sites/nancy/clusters/grisou/grisou.rb

@@ -3,7 +3,7 @@ site :nancy do |site_uid|
   cluster :grisou do |cluster_uid|
     model "Dell PowerEdge R630"
     created_at Time.parse("2016-01-04").httpdate
-    kavlan false
+    kavlan true
     queues ['admin', 'testing']
 
     51.times do |i|