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/imlib2/template

@@ -0,0 +1,31 @@
+# Template build file for 'imlib2'.
+pkgname=imlib2
+version=1.4.0
+distfiles="$SOURCEFORGE_SITE/enlightenment/$pkgname-$version.tar.gz"
+build_style=gnu_configure
+short_desc="Image manipulation library"
+maintainer="Juan RP <xtraeme@gmail.com>"
+checksum=5b663a420e1008ddc047665912cad473323803da
+long_desc="
+ Imlib 2 is the successor to Imlib. It is NOT a newer version - it is a
+ completely new library. Imlib 2 can be installed alongside Imlib 1.x
+ without any problems since they are effectively different libraries - BUT
+ they have very similar functionality.
+
+ Imlib 2 does the following:
+
+  * Load/Save image files from disk in one of many formats
+  * Render image data onto other images or an X-Windows drawable
+  * Produce pixmaps and pixmap masks of Images
+  * Apply filters and transformations to images
+  * Accept RGBA Data for images and apply colour correction/modifications
+  * Alpha blend Images on other images or drawables
+  * Render truetype anti-aliased text straight and at angles
+  * Render rectangles, anti-aliased lines, and multi-coloured gradients
+  * Cache data intelligently for maximum performance
+  * Allocate colours automatically
+  * Allow full control over caching and color allocation
+  * Provide highly optimized MMX assembly for core routines
+  * Provide plug-in filter interface
+  * Provide on-the-fly runtime plug-in image loading and saving interface
+  * Fastest image compositing, rendering and manipulation library for X"