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/bzr/template

@@ -0,0 +1,15 @@
+# Template file for 'bzr'
+pkgname=bzr
+version=2.0.1
+distfiles="http://launchpad.net/bzr/2.0/$version/+download/bzr-$version.tar.gz"
+build_style=python-module
+short_desc="Distributed version control system that Just Works"
+maintainer="Juan RP <xtraeme@gmail.com>"
+checksum=3438bd7b5d07486d85a63cf47a26f3532ef7fb4019770ca48faddfa9875e06c9
+long_desc="
+ Bazaar is a distributed version control system that Just Works.
+ While other systems require you to adapt to their model of working,
+ Bazaar adapts to the way you want to work, and you can try it out in
+ five minutes."
+
+Add_dependency full python