Add Json Helper and some class to return info of host
Edit to show at main layout
Test OK for Exception
Implements side menu, progress dialog
Merge branch 'issue#2'

Conflicts:
	app/src/main/java/mhst/dreamteam/Icinga/IcingaConst.java
	app/src/main/java/mhst/dreamteam/MainActivity.java
	app/src/main/java/mhst/dreamteam/SessionMng/Login.java
	app/src/main/java/mhst/dreamteam/SessionMng/LoginActivity.java
Implements main layout (Overview, Host, Service)