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-XML-Parser.tmpl

@@ -0,0 +1,16 @@
+# Template build file for 'perl-XML-Parser'.
+pkgname=perl-XML-Parser
+version=2.36
+distfiles="XML-Parser-$version"
+extract_sufx=".tar.gz"
+url=http://cpan.perl.org/modules/by-module/XML
+build_style=perl_module
+make_build_args="EXPATLIBPATH=$PKGFS_MASTERDIR/lib
+ EXPATINCPATH=$PKGFS_MASTERDIR/include"
+short_desc="Perl extension interface to James Clark's XML parser, expat"
+maintainer="Juan RP <xtraeme@gmail.com>"
+checksum=1c31a2398ada943efd5d2451389e163914168253
+long_desc="
+ This module provides ways to parse XML documents. It is built on top of
+ XML::Parser::Expat, which is a lower level interface to James Clark's
+ expat library."