Add INSTALL.  Update pyCharm settings.
Update pyCharm project
Factor hue state and hue dim logic into isolated functions
Remove hue level from dim transition time calc
Pass transition time to hum_dim_start.
Factor hue state and hue dim logic into Huecandescent class
Add HueColorDim style class.
Simplify Huecandescent.hue_dim_start.
PyCharm project tweaks.
Add .gitignore
Merge branch 'experimental'