Fix a bug in the extended chase when using discrete colors the extension would not work.
Prevent empty results from being added when the pulse results in 0 values on discrete gradients.
Make a change to prevent additional render requests to an effect while it is in the process of rendering itself. In some cases the pre-rendering in the editor can make a request to render and then try to draw itself before it is done. The attempt to draw can trigger a simultaneous render and cause duplicate data.
Fix a bug that would cause the last pulse in a chase that is using a gradient over the range of elements to render with the wrong portion of the gradient.
VIX-618 Added Null Reference check for EffectNode objects popped off of EffectNodeQueue before use
Adding check to DrawElement Routine that checks against the possibility of currentElement.stackcount being = 0
Finally fix the rendering progress bar in the grid. This has been an annoyance for a while now when it randomly hangs.
Changing behavior of Stackcount == 0 logic to default to RowHeight, previous logic would cause effect to dissapear in some cases
VIX-624 - Some Virtual serial ports are reported by the Windows O/S, but can not be used the same way that other serial ports are.  Some of these cause ArgumentExceptions when a user tries to configure a controller that iterates the list of available system ports.  This fix handles these instances.
Merge remote-tracking branch 'remotes/jeffu231/General_Bugs_V2'
Merge remote-tracking branch 'remotes/ebrady1/VIX-624'
Merge remote-tracking branch 'remotes/ebrady1/VIX-620'
Merge remote-tracking branch 'remotes/ebrady1/VIX-618'
Merge branch 'master' of https://github.com/sall/vixen into LipCurves