--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/EmberToXml.h

@@ -296,7 +296,7 @@ public:
 			}
 		}
 
-		if (doEdits && ember.m_Edits != nullptr)
+		if (doEdits && ember.m_Edits)
 			os << ToString(xmlDocGetRootElement(ember.m_Edits), 1, true, printEditDepth);
 
 		os << "</flame>\n";
@@ -448,7 +448,7 @@ public:
 			os.str("");
 
 			//Check for errors.
-			if (commentDoc != nullptr)
+			if (commentDoc)
 			{
 
 				//Loop through the children of the new document and copy them into the rootNode.