[Download] Improve client downloads

This is a (partial) fix for issue #14

src/Utils/CSV.cpp

@@ -4,7 +4,6 @@ namespace Utils
 {
 	CSV::CSV(const std::string& file, bool isFile, bool allowComments)
 	{
-		this->valid = false;
 		this->parse(file, isFile, allowComments);
 	}
 

src/Utils/CSV.hpp

@@ -18,7 +18,7 @@ namespace Utils
 		bool isValid() { return this->valid; }
 
 	private:
-		bool valid;
+		bool valid = false;
 		std::vector<std::vector<std::string>> dataMap;
 
 		void parse(const std::string& file, bool isFile = true, bool allowComments = true);