• Documentation improvements

• improve test suite

mail archives: https://yhbt.net/unicorn-public/
	http://ou63pmih66umazou.onion/unicorn-public/ 
	nntp://news.public-inbox.org/inbox.comp.lang.ruby.unicorn 
	nntp://ou63pmih66umazou.onion/inbox.comp.lang.ruby.unicorn 
	nntp://news.gmane.io/gmane.comp.lang.ruby.unicorn.general 
public: unicorn-public@yhbt.net
source code: git clone https://yhbt.net/unicorn.git
	torsocks git clone http://ou63pmih66umazou.onion/unicorn.git