Login Error Checking added

I added a loop to verify that you've actually logged into an account. It'll try each account 3 times (I can change this if y'all have a strong reason to not try 3 (more or less)). If it is unsuccessful after 3 tries then the program will write the failure to errorlog.txt and move on to your next account. If you're getting failures you might want to try these things:

• fix whatever you've f'd up in the settings.ini file
• figure out why your internet is so damn slow
• wait for Microsoft to get their shit together