Update article to use 3 branches diagram instead of one.

Also remove branches.ascii file.  This file is highly outdated, and
I was failed to understand how it was used in article at all.  All
my attempts to get it *really* included into generated html were failed.

If someone feels that it should not be remove, feel free to re-add
it back and update it to current state of the world.

en_US.ISO8859-1/articles/releng/Makefile

@@ -12,8 +12,9 @@ INSTALL_COMPRESSED?= gz
 INSTALL_ONLY_COMPRESSED?=
 
 SRCS=		article.sgml
-SRCS+=		branches.ascii
+IMAGES_EN=	branches-head.pic
-IMAGES_EN=	branches.pic
+IMAGES_EN+=	branches-releng3.pic
+IMAGES_EN+=	branches-releng4.pic
 
 CSS_SHEET_ADDITIONS= extra.css
 

en_US.ISO8859-1/articles/releng/article.sgml

@@ -3,7 +3,6 @@
 -->
 
 <!DOCTYPE article PUBLIC "-//FreeBSD//DTD DocBook V4.1-Based Extension//EN" [
-<!ENTITY branches.ascii SYSTEM "branches.ascii">
 <!ENTITY % authors PUBLIC "-//FreeBSD//ENTITIES DocBook Author Entities//EN">
 %authors;
 <!ENTITY % teams PUBLIC "-//FreeBSD//ENTITIES DocBook Team Entities//EN">
@@ -269,17 +268,31 @@
 
       <mediaobject>
         <imageobject>
-          <imagedata fileref="branches" align="center">
+          <imagedata fileref="branches-head" align="center">
         </imageobject>
 
         <textobject>
-          <literallayout>
+          <phrase>FreeBSD Development Branch</phrase>
-          &branches.ascii;
-          </literallayout>
         </textobject>
+      </mediaobject>
+
+      <mediaobject>
+        <imageobject>
+          <imagedata fileref="branches-releng3" align="center">
+        </imageobject>
 
         <textobject>
-          <phrase>FreeBSD Development Branches</phrase>
+          <phrase>FreeBSD 3.x STABLE Branche</phrase>
+        </textobject>
+      </mediaobject>
+
+      <mediaobject>
+        <imageobject>
+          <imagedata fileref="branches-releng4" align="center">
+        </imageobject>
+
+        <textobject>
+          <phrase>FreeBSD 4.x STABLE Branche</phrase>
         </textobject>
       </mediaobject>
 

en_US.ISO8859-1/articles/releng/branches.ascii

@@ -1,30 +0,0 @@
-$FreeBSD$
-
-           |                    FreeBSD Development Branches                 
-    +--------------+
-    | 3.0-RELEASE  |
-    |              |
-    +--------------+
-           |                                   RELENG_3
-H    ______|____   _ _ _   _ _ _   _ _ _   _ _ _   _ _ _ _    + - - - - - - +
-E   /           \ |     | |     | |     | |     | |       |   |             |
-A   |3.1-RELEASE|-|3.2R |-|3.3R |-|3.4R |-|3.5R |-| 3.5.1R|---| 3.X-STABLE  |
-D   \___________/ |_ _ _| |_ _ _| |_ _ _| |_ _ _| |_ _ _ _|   |             |
-          |                                                   + - - - - - - +
-          |
-    + - - - - - - - +
-    |  4.0-CURRENT  |
-    |               |
-    + - - - - - - - +
-          |                                    RELENG_4 
-     _____|_____   _ _ _   _ _ _ _   _ _ _   _ _ _   _ _ _    + - - - - - - +
-    /           \ |     | |       | |     | |     | |     |   |             |
-    |4.0-RELEASE|-|4.1R |-|4.1.1R |-|4.2R |-|4.3R |-|4.4R |---| 4.X-STABLE  |
-    \___________/ |_ _ _| |_ _ _ _| |_ _ _| |_ _ _| |_ _ _|   |             |
-          |                                 ___|      |__     + - - - - - - +
-          |                          _ _ _ | _ _ _   _ _ |_ _ _ __
-          |                         |             | |             |
-    + - - - - - - - +               | RELENG_4_3  | | RELENG_4_4  |
-    |  5.0-CURRENT  |               |_ _ _ _ _ _ _| |_ _ _ _ _ _ _|
-    |               |
-    + - - - - - - - +