Fix #252: infinite loop because the "hypertext engine" may duplicate '?' generating invalid "https://api.github.com/notifications?all=true&page=2?all=true" instead of "https://api.github.com/notifications?all=true&page=2&all=true". A better fix will be to prevent duplication of parameters ("all=true" in this case).
Fix #252: infinite loop because the "hypertext engine" may duplicate '?' generating invalid "https://api.github.com/notifications?all=true&page=2?all=true" instead of "https://api.github.com/notifications?all=true&page=2&all=true". A better fix will be to prevent duplication of parameters ("all=true" in this case).

kohsuke/github-api,jeffnelson/github-api,pomes/github-api,recena/github-api,Shredder121/github-api,stephenc/github-api,mmitche/github-api