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/xbps/template

@@ -0,0 +1,18 @@
+# Template file for 'xbps'
+pkgname=xbps
+version=0.2
+distfiles="http://launchpad.net/xbps/head/$version/+download/xbps-$version.tar.gz"
+build_style=gnu_makefile
+make_install_target="DESTDIR=$XBPS_DESTDIR/$pkgname-$version PREFIX= install"
+short_desc="The XBPS package system"
+maintainer="Juan RP <xtraeme@gmail.com>"
+checksum=1c68380ccfa163713bb19661b9e50219daa0972ba55c1973fffb7035898154d8
+long_desc="
+ The XBPS package system. A new, fast, from scratch and simple
+ binary package manager."
+
+conf_files="/etc/xbps-src.conf"
+
+Add_dependency full glibc
+Add_dependency full libarchive
+Add_dependency full proplib