Not knocking the guy at all but.. 'Recently I needed a library to build query strings, just a small one so that I wouldn’t have to include jQuery just for that

Not knocking the guy at all but.. 'Recently I needed a library to build query strings, just a small one so that I wouldn’t have to include jQuery just for that. After a couple of hours of research, I had found several candidates' That right there is the problem, learn your language. You don't need to spend 2 hours looking through other peoples code to solve your (string!) problem. Learn the language and write it yourself, it's not 'rolling your own' when it's something so basic.