A simple http webserver for raspberry pi
Pi Controller (the android client app) is available on google play!
Install the latest version of raspian jessie on the PI
Install mono: sudo apt-get install mono-complete
After building the server app, copy the contents of the bin folder to your raspberry PI via ssh.
Run app: sudo mono rpi-simple-webserver.exe
If you want to register the webserver as a startup service on your PI this guide will help. Make sure you use absolute paths to mono and the server app in your startup script because init.d runs as root not as pi.
You may also want to configure you PI to use a static IP address to make it easier to find on your network.