add configurable i2c pins and frequency for viki
Fix up down buttons incrementing decrementing values
Merge pull request #197 from wolfmanjm/feature/panel-updates

Feature/panel updates
change select button to press rather than release
Merge pull request #198 from wolfmanjm/upstreamedge

change select button to press rather than release
added color settings to Smoothiepanel and a cycling rainbow on the encoder