Add a Version class with a parse method and update UserAgentParser accordingly.
Add documentation to Version.
Add #isValid method to Version.
Add comparison methods to Version.
Switch to using Version instead of string in UserAgent.
Merge branch 'master' into bs-versions
Simplify IE useragent string parsing.
Merge branch 'master' into bs-versions
Merge branch 'master' into bs-versions
Compare against browserName instead of the user agent string.
Fix parsing Linux version numbers (if available.)
Fix parsing of ChromeOS platform version.
Fix Linux and ChromeOS platform version string parsing and add a spec.
Make platform version string parsing more robust.
Merge pull request #111 from typekit/bs-versions

Change UserAgentParser to return Version objects