Install UnNetHack on Ubuntu 14.04

For some reason, the great UnNetHack cannot be found in Ubuntu's repository. The PPA no longer works.

solution: make from source
Steps:

git clone https://github.com/UnNetHack/UnNetHack
cd UnNetHack
./configure
make
make install  

It seems to work without any complications.

Enjoy Nethack and UnNetHack! Elbereth!