replace domain & host by raw_url
fix cross domain issue
raw_url is not used
raw_url is instance global
Merge branch 'referer-to-real-domain' into staging
fix gclid retriever
add user_agent
add browser gem
create user_agent_factory service
replace user_agent by device_type only
cleanup device_type method

thx @matsumonkie
Merge branch 'add-devices-informations'
Merge branch 'master' into staging
Merge branch 'referer-to-real-domain'
fix conflict
Merge branch 'master' into staging
require browser
Merge branch 'staging'
merge conflict with test branch
Merge branch 'master' into production