Merge pull request #235 from siburny/master

Input parameter validation
first post-BBQ update

1. add usb mappings to configuration.json, cf. configuration.json.sample
2. remove old insteon driver
sunday evening update

1. fix bug in Pioneer AVR discovery code
2. more event group management
apprentice.svg added to repo
event lastTime fine-tuning
fix activation for /device/media/video/roku
telldus dimmer: fix dimmer value calcuation
HTML5/D3: Curator-only update