fixed unban command and fixed checking for blacklist command

README.md

 - Slowmode now doesn't effect mods and admins of that guild.
 - Fixed `blacklist` command.
 - Fixed backup system because it didn't keep the backup folder there.
+- Fixed `unban` command
 
 #### v1.6.0
 ###### New Features

Roxbot/cogs/admin.py

 	@commands.has_permissions(ban_members=True)
 	@commands.bot_has_permissions(ban_members=True)
 	@bot.command()
-	async def unban(self, ctx, member:discord.Member, *, reason = ""):
-		"""Unbans mentioned user. Allows you to give a reason."""
+	async def unban(self, ctx, member_id:int, *, reason = ""):
+		"""Unbans user with given ID. Allows you to give a reason."""
+		mem = None
+		for ban in await ctx.guild.bans():
+			if ban.user.id == member_id:
+				mem = ban.user
+		if mem is None:
+			raise bot.CommandError("User not found in bans.")
 		try:
-			await member.unban(reason=reason)
-			return await ctx.send("Unbanned {} with reason: '{}'".format(member, reason))
+			await ctx.guild.unban(mem, reason=reason)
+			return await ctx.send("Unbanned {} with reason: '{}'".format(mem, reason))
 		except discord.Forbidden:
 			return await ctx.send("I can't kick the owner or users higher or equal to me.")
 

Roxbot/cogs/customcommands.py

 def blacklisted(user):
 	with open("Roxbot/blacklist.txt", "r") as fp:
 		for line in fp.readlines():
-			if user.id+"\n" == line:
+			if str(user.id)+"\n" == line:
 				return True
 	return False
 

Roxbot/cogs/twitch.py

 def blacklisted(user):
 	with open("Roxbot/blacklist.txt", "r") as fp:
 		for line in fp.readlines():
-			if user.id+"\n" == line:
+			if str(user.id)+"\n" == line:
 				return True
 	return False
 

main.py

 def blacklisted(user):
 	with open("Roxbot/blacklist.txt", "r") as fp:
 		for line in fp.readlines():
-			if user.id+"\n" == line:
+			if str(user.id)+"\n" == line:
 				return True
 	return False