Release connection when error occurs during login.
Release connection when error occurs during login.

Harmon758/discord.py,lgkern/PriestPy,Harmon758/discord.py,Theoretical/UselessBot,imayhaveborkedit/discord.py,variablehair/Eggplantato,jhgg/discord.py,Rapptz/discord.py,mgardne8/discord.py,khazhyk/discord.py,rapptz/discord.py