Do not compress `transition` property

A follow-up to #82
Recent Firefox versions are using unprefixed `transition` property
Added `ms` unit name to skip `transition` optimization

Fixed tests
Merge pull request #144 from sergeche/transition-fix

Do not compress `transition` property
Added Travis-CI
Added Travis-CI badge
Re-wrote test suite

It uses Mocha now for better reports and actually fails when something wrong.
Bumping version 1.3.9
Added meta-info for all docs