Merge pull request #5 from webdoc/master

Detect googlebot-mobile useragent as mobile
Update .travis.yml

[ci skip]
Fine-tune Rakefile
Update Gemfile
Merge pull request #6 from webdoc/master

Add detection for Firefox on Android
Changelog update and pimping!
Move specs under spec/lib
Update Gemfile, Guardfile and gemspec
Fix an issue with Googlebot Mobile and misc improvements
Merge branch 'webdoc-master'
Update CHANGELOG
Don't use send, explicitely use detect_user_agent_by_product_or_comment
Handle Webkit UserAgent without spaces
Detect the WhatsEye browser
Detect Chrome on Android and simplify Webkit OS detection logic