Update to pkg 1.4.0.alpha1

Changes:
- Lots of cleanup in the API
- Huge refactoring to avoid using hashes where not needed
- add a new @config keyword for all files with such flags pkg will try
  automatically to merge the difference with newer version on upgrades
  a vanilla version of the file is kept in the db to allow 3 way merge
  this was the last blocker to be able to package base
- new options AUTOMERGE to prevent pkg to automatically merge @config files
- speed up upgrades by only extracting files that are different from 2 packages
- convert unique package identifier to the package name (at last !)
- drop incremental update support this was preventing allowing multiple packages
  with the same name in a remote repo
- lots of improvements in the pkg update process
- update sqlite to 3.8.7
- Change pkg audit so that it points to the http://vuxml.FreeBSD.org/freebsd/
  location by default
- Lots of fixes in the solver

ports-mgmt/pkg-devel/Makefile

@@ -1,7 +1,7 @@
 # $FreeBSD$
 
 PORTNAME=	pkg
-DISTVERSION=	1.4.0.pre-alpha16
+DISTVERSION=	1.4.0.alpha1
 _PKG_VERSION=	${DISTVERSION}
 CATEGORIES=	ports-mgmt
 MASTER_SITES=	\

ports-mgmt/pkg-devel/distinfo

@@ -1,2 +1,2 @@
-SHA256 (pkg-1.4.0.pre-alpha16.tar.xz) = 97f91a849c6b17d55adb23a8046ddd745f27b908452fd48b59b9df804b0791a9
-SIZE (pkg-1.4.0.pre-alpha16.tar.xz) = 1747600
+SHA256 (pkg-1.4.0.alpha1.tar.xz) = 86d70aa47fbd910db7f1ac734a9788acda6ceed7b83e3d68ca010e8c3c90af46
+SIZE (pkg-1.4.0.alpha1.tar.xz) = 1770688