Adjust examples to last Mistral updates

Change-Id: I1c2a10615e5af09fd0d48fbe55b1df67baee867e

examples/v2/calculator/calculator.yaml

@@ -14,6 +14,9 @@ actions:
         arguments: <% $.arguments %>
     output:
       summ_result: <% $.content.result %>
+    input:
+      - vm_ip
+      - arguments
 
   run_calculator_server:
     description: SSH command to run the server.
@@ -23,6 +26,10 @@ actions:
       username: <% $.username %>
       password: <% $.password %>
       cmd: 'nohup python ~/web_app.py > web_app.log &'
+    input:
+      - host
+      - username
+      - password
 
 workflows:
   run_calculator:

examples/v2/tenant_statistics/tenant_statistics.yaml

@@ -49,15 +49,15 @@ workflows:
       get_vm_count:
         action: nova.servers_list
         publish:
-          vm_count: <% $.get_vm_count.length() %>
-          active_vm_count: <% $.get_vm_count[$.status = 'ACTIVE'].length() %>
+          vm_count: <% $.get_vm_count.len() %>
+          active_vm_count: <% $.get_vm_count[$.status = 'ACTIVE'].len() %>
         on-complete:
           - get_net_count
 
       get_net_count:
         action: neutron.list_networks
         publish:
-          net_count: <% $.get_net_count.length() %>
+          net_count: <% $.get_net_count.len() %>
         on-complete:
           - send_stat
 
@@ -93,15 +93,15 @@ workflows:
       get_vm_count:
         action: nova.servers_list
         publish:
-          vm_count: <% $.get_vm_count.length() %>
-          active_vm_count: <% $.get_vm_count[$.status = 'ACTIVE'].length() %>
+          vm_count: <% $.get_vm_count.len() %>
+          active_vm_count: <% $.get_vm_count[$.status = 'ACTIVE'].len() %>
         on-complete:
           - send_stat
 
       get_net_count:
         action: neutron.list_networks
         publish:
-          net_count: <% $.get_net_count.length() %>
+          net_count: <% $.get_net_count.len() %>
         on-complete:
           - send_stat