Remove CYLON_TEST global var
Updates for Cylon core changes (removal of Connection/Device)
Use new multiple-device syntax
Fix I2C calbacks in adaptor, now all callbacks need to bre provided with latest node-i2c
Merge pull request #22 from hybridgroup/fix-i2c-callbacks

Fix I2C calbacks in adaptor, now all callbacks need to bre provided with...
Update examples for new syntax
Bump version to "0.13.0"