Description of problem:
When Availability check is changed, for instance from enabled to disabled, this change is not picked up by the agent and availability is still checked and server status changed depending on it's real state. 


Version-Release number of selected component (if applicable):
JON 3.1.0

How reproducible:
Every time.

Steps to Reproduce:
1. Import JBoss instance;
2. Navigate to Monitor -> Schedule (for that server instance) and disable Availability check;
3. After some time (at least 2 minutes if Availability check was initially set to 1 minute), stop the JBoss instance;
4. Execute "avail --force" on the JON Agent command line;
5. Check the status of the JBoss server;
  
Actual results:
The status of the JBoss instance changes to DOWN in JON UI. 

Expected results:
JBoss stays UP because it picks up the status of its parent resource (platform) as explained in [1]. 

Additional info:
The change in Availability check will be propagated after the agent is restarted with "--purgedata" option.

[1] https://access.redhat.com/knowledge/docs/en-US/JBoss_Operations_Network/3.1/html-single/Admin_Setting_up_Monitoring_Alerts_and_Operations/index.html#avail-backfill