<SupervisorApp>
- Add close button 
- Modify layout
Merge branch 'master' of https://github.com/xingri/WWC_Spartan
Merge branch 'master' of https://github.com/xingri/WWC_Spartan
Merge branch 'master' of https://github.com/xingri/WWC_Spartan
<SupervisorApp>
- Apply Singletone, Observer pattern
- Implement DB Monitoring threads