Somfy Tahoma plug-in, Description & Notes Enhancement, Harmony activity web callback, new value passing parameters for device info and hex intensity values and many fixes

Fixes #454 Somfy Tahoma plugin enhancement
Fixes #430 hex value needed for dimming enhancement question
Fixes #423 Naming & Notes Enhancement Suggestions enhancement
Fixes #512 Dim handling in V4 question
Fixes #467 Available syntaxes besides ${intensity.percent} ? enhancement
Fixes #416 Use ${intensity.percent} with Harmony Hub enhancement question
Fixes #548 Removing Delay or Repeat in Edit-Device results in bad Config bug
Fixes #537 Minor documentation error bug
Fixes #237 Upgrade resulted in duplicates - Need to keep ha-bridge created user for device enhancement question
Fixes #324 Added a optional webhook for harmony-activity changes enhancement
Fixes #492 Use relative path in URLs enhancement
Fixes $558 null pointer issue