+ fix warnings:

-Wsign-compare, -Wunused-variable, -Wunused-function, -Wswitch
+ fix Qt issues

src/Mod/JtReader/App/TestJtReader.cpp

@@ -46,7 +46,7 @@ TestJtReader::~TestJtReader()
 
 void TestJtReader::read(void)
 {
-	const std::vector<TOC_Entry>& toc = readToc();
+	//const std::vector<TOC_Entry>& toc = readToc();
 
 	for (std::vector<TOC_Entry>::const_iterator i = TocEntries.begin(); i != TocEntries.end(); ++i){
 		int segType = i->getSegmentType();