Renamed DownloadMessages' cache to useCache

src/Discord.Net/DiscordClient.Messages.cs

@@ -217,7 +217,7 @@ namespace Discord
 
 
 		/// <summary> Downloads last count messages from the server, returning all messages before or after relativeMessageId, if it's provided. </summary>
-		public async Task<Message[]> DownloadMessages(Channel channel, int count, string relativeMessageId = null, RelativeDirection relativeDir = RelativeDirection.Before, bool cache = true)
+		public async Task<Message[]> DownloadMessages(Channel channel, int count, string relativeMessageId = null, RelativeDirection relativeDir = RelativeDirection.Before, bool useCache = true)
 		{
 			if (channel == null) throw new ArgumentNullException(nameof(channel));
 			if (count < 0) throw new ArgumentNullException(nameof(count));
@@ -234,7 +234,7 @@ namespace Discord
                     var result = msgs.Select(x =>
 					{
 						Message msg = null;
-						if (cache)
+						if (useCache)
 						{
 							msg = _messages.GetOrAdd(x.Id, x.ChannelId, x.Author.Id);
 							if (trackActivity)