Fixed: dispose the script streams once they exit.

context.cs

@@ -93,6 +93,7 @@ namespace arookas
 				var tree = parser.Parse(file);
 				tree.Compile(this);
 				ImportResolver.ExitFile(file);
+				file.Dispose();
 			}
 			return result;
 		}

import resolver.cs

@@ -85,7 +85,7 @@ namespace arookas
 		FailedToLoad,
 	}
 
-	public class sunScriptFile
+	public class sunScriptFile : IDisposable
 	{
 		public string Name { get; private set; }
 		public Stream Stream { get; private set; }
@@ -108,6 +108,11 @@ namespace arookas
 			Stream = stream;
 		}
 
+		public void Dispose()
+		{
+			Stream.Dispose();
+		}
+
 		public TextReader GetReader()
 		{
 			return new StreamReader(Stream);