--User changes

-Add a new dialog for editing QSS stylesheets. Allow for saving, reloading and setting styles as default.
  --Include a dark style with the installation called dark.qss.
  --Also add support for themes such as Fusion.
  --Resize some controls to better fit with the new style.
 -Add an option to specify the number of random embers generated on startup. 1 is the minimum and the default.

--Bug fixes
 -Properly enable/disable thread priority label in final render dialog in response to enable/disable of the OpenCL checkbox.
 -Remove all inline stylesheets.
 -Show xaos spinners with 6 decimal places.

--Code changes
 -Remove redundant comparisons to nullptr, use ! instead;
 -Give some controls valid names instead of the auto generated ones.
 -DoubleSpinBoxTableItemDelegate.h: Add virtual keyword to overridden functions.

Source/Ember/Interpolate.h

@@ -544,7 +544,7 @@ public:
 	static void InterpParametricVar(vector<ParametricVariation<T>*>& first, ParametricVariation<T>* second, vector<T>& c)
 	{
 		//First, make sure the variation vector is the same size as the coefficient vector.
-		if (second != nullptr && first.size() == c.size())
+		if (second && first.size() == c.size())
 		{
 			second->Clear();
 			auto secondParams = second->Params();