* allow multiple hints files

* __DATA__ with perl 5.6

* finish interface for Frontend and Backend; specifically
  complete the list of standard options.

* support for producing DLL/so

* load .al files, too, and search their subs, too

* why does delete_args crash under linux?

* Compression
  * better error handling/buffering in decompression
  * don't load all the file in memory when compressing it!
