upgraded parent to 66
prepared test for jdk 8
replaced fest-assert dep with assertj-core
replaced all fest-assert imports with assertj
replaced fest-assert specific methods
Merge branch 'feature/switch-to-assertj' into develop
removed fest-assert dep
updating poms for branch '6.1.0' with snapshot versions
updating poms for 6.1.1-SNAPSHOT development
updating poms for branch'release/6.1.0' with non-snapshot versions
Merge branch 'release/6.1.0'
updating develop poms to master versions to avoid merge conflicts
Merge branch 'master' into develop
Updating develop poms back to pre merge state