Update README.md
Merge pull request #8 from joola/release/3.0.6

Release/3.0.6
Merge pull request #10 from joola/release/3.0.7

Release/3.0.7
Merge branch 'release/3.0.7'
Merge branch 'master' of https://github.com/joola/joola.io.analytics
Merge branch 'release/3.1'
Merge pull request #12 from joola/develop

Support files update
Fixed issue with Travis-CI build badge
Merge branch 'master' into develop