make in the release directory now works correctly again on windows

- updated Help.url -> http://www.blender3d.org/Community/websites.php
- export $(DISTDIR) from Makefile
- chmod +x windows/specific.sh
- use awk to generate dos txt files instead of perl, perl stuff was broken
- chmod +x python22.dll, otherwise blender refuses to start

release/Makefile

@@ -34,7 +34,7 @@ include nan_definitions.mk
 VERSION := $(shell cat VERSION)
 
 BLENDNAME=blender-$(VERSION)-$(CONFIG_GUESS)$(TYPE)
-DISTDIR=$(NAN_OBJDIR)/$(BLENDNAME)
+export DISTDIR=$(NAN_OBJDIR)/$(BLENDNAME)
 
 all:
     ifeq ($(OS),beos)