added new data-structures

added new test-cases
added flexible dijkstra calculation
added debugging log
modified: plotting, grid-generation, grid-importance,
refactoring

main.cpp

@@ -15,7 +15,7 @@ int main(int argc, char** argv) {
 
 #ifdef WITH_TESTS
 	::testing::InitGoogleTest(&argc, argv);
-	//::testing::GTEST_FLAG(filter) = "*bbox*";
+	::testing::GTEST_FLAG(filter) = "*TestAll*";
 	return RUN_ALL_TESTS();
 #endif