gnu: emacs-counsel-bbdb: Use GitHub repository.

* gnu/packages/emacs-xyz.scm (emacs-counsel-bbdb)[version]: Use regular
upstream version instead of MELPA's.
[source]: Fetch from GitHub.

gnu/packages/emacs-xyz.scm

@@ -1956,15 +1956,16 @@ mode, Rmail, Gnus, MH-E, and VM).  BBDB is fully customizable.")
 (define-public emacs-counsel-bbdb
   (package
     (name "emacs-counsel-bbdb")
-  (version "20181128.1320")
+    (version "0.0.4")
     (source
      (origin
-      (method url-fetch)
-      (uri (string-append "https://melpa.org/packages/counsel-bbdb-"
-                          version ".el"))
+       (method git-fetch)
+       (uri (git-reference
+             (url "https://github.com/redguardtoo/counsel-bbdb")
+             (commit version)))
+       (file-name (git-file-name name version))
        (sha256
-        (base32
-          "03g3lk8hz9a17vf5r16x054bhyk8xsbnfq0div8ig13fmhqi159q"))))
+        (base32 "0bki658mvlchqf3prkzxz4217a95cxm58c1qmf84yp2n8h6gd0d8"))))
     (build-system emacs-build-system)
     (propagated-inputs `(("emacs-ivy" ,emacs-ivy)))
     (home-page "https://github.com/redguardtoo/counsel-bbdb")