Typo fixes on comments/strings

My first PR contribution to TShock is spellcheck huh, frankly I don't know why but hey I could spare the time for this and caught some stuff.

TShockAPI/ILog.cs

@@ -119,7 +119,7 @@ namespace TShockAPI
 		/// Writes a message to the log
 		/// </summary>
 		/// <param name="message">Message to write</param>
-		/// <param name="level">LogLevel assosciated with the message</param>
+		/// <param name="level">LogLevel associated with the message</param>
 		void Write(string message, TraceLevel level);
 
 		/// <summary>
@@ -152,4 +152,4 @@ namespace TShockAPI
 		/// </summary>
 		void Dispose();
 	}
-}
+}