Major infrastructure changes, part 2.

* Moved helpers, common and triggers dirs into xbps-src, where
  they belong.
* Renamed the templates dir to srcpkgs, it was so redundant before.
* Make it possible to add subpkgs with no restriction in names, for
  example udev now has a subpkgs called "libgudev". Previously
  subpkgs were named "${sourcepkg}-${pkgname}".
* xbps-src: changed to look for template files in current directory.
  That means that most arguments from the targets have been removed.
* xbps-src: added a reinstall target, to remove + install.
* xbps-src: do not overwrite binpkgs by default, skip them.

And more that I forgot because it's a mega-commit that I've been
working for some days already...

--HG--
extra : convert_revision : 0f466878584d1e6895d2a234f07ea1b2d1e61b3e

srcpkgs/perl-ExtUtils-PkgConfig/template

@@ -0,0 +1,22 @@
+# Template build file for 'perl-ExtUtils-PkgConfig'.
+pkgname=perl-ExtUtils-PkgConfig
+version=1.12
+revision=1
+wrksrc="ExtUtils-PkgConfig-$version"
+distfiles="${SOURCEFORGE_SITE}/gtk2-perl/ExtUtils-PkgConfig-$version.tar.gz"
+build_style=perl_module
+short_desc="Simplistic perl interface to pkg-config"
+maintainer="Juan RP <xtraeme@gmail.com>"
+checksum=6330b9d1165363837ac1ab014888e3d908f8fb9eb76b31a36096d0e504f6ff42
+long_desc="
+ The pkg-config program retrieves information about installed libraries,
+ usually for the purposes of compiling against and linking to them.
+
+ ExtUtils::PkgConfig is a very simplistic interface to this utility,
+ intended for use in the Makefile.PL of perl extensions which bind
+ libraries that pkg-config knows. It is really just boilerplate code
+ that you would've written yourself."
+
+noarch=yes
+Add_dependency full perl
+Add_dependency full pkg-config