Merge branch 'master' into develop
correct require
use PSR-4
move bootstrap
move out client
correct namespase
add browser test
test methods for get host and api host
add to require symfony/dom-crawler
move out crawler
fix errors
test get failed transport
create crawler in get method
test method get
add support php 5.3
add comment
i don't remember why need this code
mbstring php ext is not require
add more php versions
test code coverage for scrutinizer