refs #4224, #4302 - added code coverage report using coveralls.io
enable fast finish for travis builds
refs #4224 - exclude example plugins from codecoverage reports
Merge pull request #6023 from sgiehl/master

refs #4224, #4302 - added code coverage report using coveralls.io
Merge branch 'master' into codecoverage
Merge pull request #6036 from piwik/codecoverage

Enables code coverage reports using coveralls.io