fabpot/Sami — pull request #111 by aik099 (2014-07-21 10:10:25+00:00)
Title: Don't update Composer on each buld

Currently at least 1 of builds in build matrix fails because of `composer self-update` command in the `.travis.yml`. See https://travis-ci.org/fabpot/Sami/jobs/30440724

I've removed it since I haven't witnessed a case, that even month old `composer.phar` has created problems during a build.