Implement switch type parameters
Create a base class for EffectParameterSlot and EffectButtonParameterSlot to avoid duplicate code
Move updated() signal to EffectParameterSlotBase
Use EffectParameterSlotBasePointer inside WEffectParameter
Display labels for button parameters; also create a base class for WEffectParameter and WEffectButtonParameter to avoid duplicate code
Fix DOM element's name (Parameters --> ButtonParameters)
Set kEffectDebugOutput to false
Remove ASCII art from headers
Merge pull request #281 from badescunicu/switch_type_parameters

Effect Button Parameters