Mega patch to improve how build dependencies are handled and

how packages are found.

First: I removed all these *-deps.db files and only a single file
is used now "build-depends.db"; it's smaller and will be easier
to handle in the future... when "run-depends.db" is added :-)

Second: there's no need to specify version of package anymore;
before you had to do:

	$ pkgfs.sh install git-1.6.0.2

now you only do:

	$ pkgfs.sh install git

This will read the variables located at PKGFS_TEMPLATESDIR/git.tmpl
and will the install the version that is there.

--HG--
extra : convert_revision : 9e3e5d70965a69c76f59e322b7c7b674d627af52

templates/perl-dont-hardcode-rpath.diff

@@ -0,0 +1,16 @@
+Do not hardcode rpath dirs into binaries or modules that would cause
+unexpected results with pkgfs.
+
+--- hints/netbsd.sh.orig	2008-10-02 01:03:43.000000000 +0200
++++ hints/netbsd.sh	2008-10-02 01:04:38.000000000 +0200
+@@ -178,8 +178,8 @@ EOCBU
+ # Set sensible defaults for NetBSD: look for local software in
+ # /usr/pkg (NetBSD Packages Collection) and in /usr/local.
+ #
+-loclibpth="/usr/pkg/lib /usr/local/lib"
+-locincpth="/usr/pkg/include /usr/local/include"
++loclibpth=""
++locincpth=""
+ case "$rpathflag" in
+ '')
+ 	ldflags=