Adrien Crivelli 070ab7d430 Simplify install instructions
Composer can create `composer.json` if missing, and letting 
composer pick the latest version by itself is more future proof than
hardcoding a version that need to be changed on each release.
2017-03-20 23:15:17 +09:00
..
2016-11-05 23:55:51 +07:00
2017-01-19 19:28:41 +07:00