TechnicPack/Technic-Launcher-Updater — pull request #3 by tepidpond (2012-09-27 15:19:06+00:00)
Title: Wifi signin redirection causes silent errors

All jarfiles begin with "PK". If user is on a wifi point that requires signing in, he'll be redirected as in this post (http://forums.technicpack.net/threads/launcher-does-not-handle-redirects.26429) and not succesfully download technic-launcher.jar. This commit checks that we actually downloaded a real jarfile and notifies the user otherwise.