Update app/views/mylyn_connector/information/version.xml.builder

Updated the xml.rails var to Rails::VERSION::STRING, which is agnostic of whether rails is running via a Gem. Gentoo doesn't use gems when installed via its package manager (portage).
Merge pull request #14 from DaveHarrison/stable-2.8

Update app/views/mylyn_connector/information/version.xml.builder