Merge pull request #128 from jonathanchrisp/staging

NoTask - merging latest features from staging branch
Merge pull request #134 from jonathanchrisp/staging

NoTask - Signals group endpoints
Merge pull request #136 from jonathanchrisp/staging

Updated Version 9.0.0
Merge pull request #137 from jonathanchrisp/staging

NoTask - fixed response error message parsing
Merge pull request #138 from jonathanchrisp/staging

NoTask - updated gems to latest versions and date
Merge pull request #139 from jonathanchrisp/staging

NoTask - fixed bw_status_board_api middleware conflict
NoTask - updated CHANGELOG.md
Update README.md
NoTask - resolved conflict with master branch