moved away from having vaiables for ua classes to generating them on the fly
documentation
Improve docs
finished implementing opt-in placeholder version of ua classes
travis ci
Improve comment
reverted to unhyphenated version suffix
Merge branch 'granular-placeholder-classes' of https://github.com/Financial-Times/o-useragent into granular-placeholder-classes
Merge pull request #4 from Financial-Times/granular-placeholder-classes

Granular placeholder classes