Fixed nullpointer without ethernet connection. #36
Merge branch 'server'
Changed most activities to fragments. Close #92
A new main activity and layout was created to host these fragments.
In addition, action buttons were replaced by tabs.
Index page with server mappings

All server addresses are now accessible from "/". Removed
HelloController.
Fixed application crash when switching between fragments. Close #93
Province controller

Only activates a test method. Creating this code took only 10 minutes. 
Close #90
Created a better fix to fragment crash. Close #93
Merge remote-tracking branch 'origin/master' into server