mis: installer/poldek/vfile testcookie.c vfile.c vfile.h

[PLD CVS]

Module name:	installer
Changes by:	mis	01/06/08 17:06:48

Modified files:
	poldek/vfile   : vfile.c vfile.h 
Added files:
	poldek/vfile   : testcookie.c 

Log message:
- added "digest mode" - detection of need to donwload is based on file
  digest taken from FILE.md