Big refactor for more idiomatic cap 3 support
Fix bug - unicorn_user is fetched properly
Restart unicorn after deploy
Leverage SSHKit for unicorn executable
Bump required capistrano version
Remove `before :restart` biding
Unicorn and nginx support stages by default
Make tasks more idempotent and faster
Unicorn and nginx plug to idiomatic cap 3 hooks
Fix logrotate syntax error
Merge remote-tracking branch 'bruno/cap3-support-refactoring' into v0.1

Conflicts:
	lib/capistrano/nginx_unicorn/tasks.rb
	lib/generators/capistrano/nginx_unicorn/templates/unicorn_init.erb