Merge pull request #619 from j0hnL/host-file-fix

Fixed Inventory Example

examples/host_inventory_file

@@ -1,21 +1,16 @@
 all: 
   children:
-    cluster:
-      children:
-        manager:
-          hosts:
-            manager.omnia.local:
-        nfs_node:
-          hosts:
-            manager.omnia.local:
-        login_node:
-          hosts:
-            login1.omnia.local:
-        workers:
-          children:
-            compute:
-              hosts:
-                compute001.omnia.local;
-                compute002.omnia.local;
-                compute003.omnia.local;
-                compute004.omnia.local;
+    manager:
+      hosts:
+        manager.omnia.local:
+    nfs_node:
+      hosts:
+        storage.omnia.local:
+    login_node:
+      hosts:
+        login1.omnia.local:
+    compute:
+      hosts:
+        compute[001-004].omnia.local:
+        compute010.omnia.local:
+        compute011.omnia.local: