Immanuel/nnn: My build of nnn with minor changes - nnn

My build of nnn with minor changes

Arun Prakash Jana d8d4be6aa6 Add test files		pirms 6 gadiem
..
auto-completion	Add option -s to use string filters	pirms 6 gadiem
natool	natool: support multiple args	pirms 6 gadiem
nlay	Prepare for release v2.2	pirms 6 gadiem
quitcd	Document second method of adding quitcd to fish	pirms 6 gadiem
test	Add test files	pirms 6 gadiem
user-scripts	Add user script to upgrade nnn on Debian 9 Stretch	pirms 6 gadiem