Fixed infinite loading when server is down

Closes #13 (closed)

Description of reproducing the server disconnect and getting to error page

1. Compile and run the project locally.

2. Browse through the application while logged in, to make sure there is a solid connection.

3. Go to hosts file (e.g. %WINDOWS%\system32\drivers\etc\hosts for windows or /etc/hosts for Linux etc) and add

127.0.0.4 your.api.server.example.com . where your.api.server.example.com is the FQDN of your Universis API Server

4. Save the file

5. Try to browse through the application again.

6. Remove 127.0.0.4 your.api.server.example.com . and save again when done, to restore the application functionality.