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/desktop-file-utils/template

@@ -0,0 +1,18 @@
+# Template build file for 'desktop-file-utils'.
+pkgname=desktop-file-utils
+version=0.15
+revision=1
+distfiles="http://freedesktop.org/software/$pkgname/releases/$pkgname-$version.tar.gz"
+build_style=gnu_configure
+short_desc="Utilities to manage desktop entries"
+maintainer="Juan RP <xtraeme@gmail.com>"
+checksum=c463d851fb057acd53800cfc4f8ae39dcbcad7f03b4bd547288e95b6de53b022
+long_desc="
+ desktop-file-utils contains a couple of command line utilities for working
+ with desktop entries and the applications database. More specifically,
+ it contains the update-desktop-database utility, used to rebuild the database
+ that connects MIME types to applications."
+
+Add_dependency build pkg-config
+Add_dependency full glibc
+Add_dependency full glib