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

xbps-src/common/Makefile

@@ -0,0 +1,16 @@
+include ../vars.mk
+
+.PHONY: all
+all:
+
+.PHONY: clean
+clean:
+
+.PHONY: install
+install:
+	install -d $(DESTDIR)$(SHAREDIR)/common
+	install -m 644 *.sh $(DESTDIR)$(SHAREDIR)/common
+
+.PHONY: uninstall
+uninstall:
+	-rm -rf $(DESTDIR)$(SHAREDIR)/common

xbps-src/common/fetch_sites.sh

@@ -0,0 +1,13 @@
+# 
+# HTTP/FTP vars that can be used by templates.
+#
+
+SOURCEFORGE_SITE="http://downloads.sourceforge.net/sourceforge"
+NONGNU_SITE="http://download.savannah.nongnu.org/releases"
+UBUNTU_SITE="http://archive.ubuntu.com/ubuntu/pool"
+XORG_SITE="http://xorg.freedesktop.org/releases/individual"
+DEBIAN_SITE="http://ftp.debian.org/debian/pool"
+GNOME_SITE="http://ftp.gnome.org/pub/GNOME/sources"
+KERNEL_SITE="http://www.kernel.org/pub/linux"
+CPAN_SITE="http://cpan.perl.org/modules/by-module"
+MOZILLA_SITE="ftp://ftp.mozilla.org/pub/mozilla.org"