Merge pull request #1 from HenryKeen/master

Hello server/client
Problem: Xamarin user prefs file should be ignored

Fix: Added .userprefs to .gitignore
Split app into client and server methods
Add metrics.net to measure server requests time
Merge pull request #2 from etishor/server-test

Split app to client and server methods
Fix metrics.net Reference
Merge pull request #3 from etishor/server-test

Fix metrics.net Reference
Add server project, listen for message, respond with secret and ip