Fix breaking change to LibInvercargill

src/lib/Builder.vala

@@ -51,7 +51,7 @@ namespace Ppub {
             stream.write(header_data);
             stream.write(index_data);
 
-            foreach (var asset in assets.as_iterable()) {
+            foreach (var asset in assets) {
                 if(asset.flags.contains("gzip")) {
                     var compressor = new ZlibCompressor(ZlibCompressorFormat.GZIP, 9);
                     var conv_stream = new ConverterInputStream(asset.stream, compressor);

src/tools/extract/Extract.vala

@@ -18,7 +18,7 @@ public static int main(string[] args) {
 
     print_verbose("Reading assets...");
     
-    foreach (var asset in ppub.assets.as_iterable()) {
+    foreach (var asset in ppub.assets) {
         print_verbose(@"Extracting asset \"$(asset.name)\"...");
         var file = File.new_for_path(asset.name);
         var os = file.create(FileCreateFlags.NONE);