- fetchdarcs supports now partial

- fetchdarcs_2pre added
- flapjax added
- no longer used : annotatedDerivations
- added bleeding edge repos with a tiny nix repository manager which dowloads and
  updates repostiries, then creates tar.gz dist files which are used by bleeding_edge_source
  (darcs tested only by now)
- added experimental my_environment with example

svn path=/nixpkgs/trunk/; revision=10974

pkgs/build-support/fetchdarcs/builder.sh

@@ -7,9 +7,9 @@ if test -n "$tag"; then
     tagflags="--tag=$tag"
 fi
 
-header "getting $url ${tagtext}into $out"
+header "getting $url $partial ${tagtext} into $out"
 
-darcs get --no-pristine-tree --partial $tagflags "$url" "$out"
+darcs get --no-pristine-tree $partial $tagflags "$url" "$out"
 # remove metadata, because it can change
 rm -rf "$out/_darcs"