[Chicken-users] CVS changes + spiffy, iset and tk-doc updates

[felix winkelmann]

Hello!

Egg updates:

- new iset version (by Alex Shinn)
- improved tk documentation (thanks to Wolf-Dieter Busch)
- spiffy (the web-server) has been completely revamped, and is now a library
  (instead of an application)
- http-server: handles multipart/form-data content type and parses
unknown content-types
  as raw strings

CVS news:

- srfi-18: added Chris Double's repl-hack to allow running threads
while waiting for user input
  in the REPL
- fixed several bugs in examples/makefile.vc [Thanks to Psy-Kosh]
- easyffi: handles typedef's for function types
- fixed bug in `set-extension-specifier!'
- SRFI-55 support
- `declare' in interpreted code generates a warning
- `use'/`require-extension' also checks `##sys#features' when
resolving requirements


cheers,
felix