unload a module (and it's debugging information), and a process
  without pain
- portabiblity to another CPU should be easier now (CPU dependent backend)
- speed up memory allocation
- stabs related fixes:
      + now correctly handling symbol's size
      + blocks {} in functions are now correctly recognized and stored
        (also applies to local variables scoping)
      + better basic types management (less wild guesses in the code)
      + full support of inline functions (source stepping now shows the
        code in .h files for example)
- removal of external debugger (attaching with gdb is just fine to
  debug winedbg)
- fixed a couple of issues for symbol address handling (address
  lookup, incorrect type binding)
- winedbg now has a man page