No need to install custom phantomjs for travis.

王权利请求将github/fork/simi/master合并到master

Created by: simi

Travis uses PhantomJS 1.7.0 for some time now.

Evidence: https://github.com/travis-ci/travis-cookbooks/blob/master/ci_environment/phantomjs/attributes/default.rb#L1

合并请求报告