ui & logic: fixes for release

* smaller indexing progress dialog with bar in the middle instead of golden ratio
* set default code snippet expand range to 3
* no minimum height for project file location element in project setup wizard
* move aggregation and inheritance edges to front when hovered or active
* push parent nodes of active nodes to back to make edges to the active child visible
* properly quit application when window is closed while confirm box is open
* properly quit application when window is closed while indexing
* only count top level nodes for count on bundle nodes
* give noLetterScore to index 0 in search index scoring

bug id = 121

src/lib/component/controller/helper/DummyNode.h

@@ -140,23 +140,6 @@ public:
 		return false;
 	}
 
-	size_t getConnectedSubNodeCount() const
-	{
-		size_t count = 0;
-
-		if (connected)
-		{
-			count += 1;
-		}
-
-		for (std::shared_ptr<DummyNode> node : subNodes)
-		{
-			count += node->getConnectedSubNodeCount();
-		}
-
-		return count;
-	}
-
 	std::vector<const DummyNode*> getConnectedSubNodes() const
 	{
 		std::vector<const DummyNode*> nodes;