Tested after uncommenting. We will need there a lot of work. It is supposed to let create a pack for a speciific language containing specific ini files.
1: if x-debug is on, the zip contains x-debug and can't be decompressed
2. We have quite a few Undefined property and the file produced is wrong + some deprecated calls.
3. The language choice is broken
4. The method we use to make language packs have changed since early 1.6 and we need more xmls and a package (See docs)
5. We should be able there to create specific extensions packages OR CORE packs, therefore we need to use at least the install.xml we have now in core to filter the list proposed.