Fix broken references to plan9.bell-labs.com/plan9

Fixes #357

dist/deb.html

@@ -20,7 +20,7 @@ Edit ./^$/,s/<Table/<table border=0 cellspacing=0 cellpadding=0 width=100%/g
     <table border=0 cellspacing=0 cellpadding=0 width=100%><tr height=10><td></table>
     <a href="../">Plan 9 from User Space (aka plan9port)</a>
     is a port of many Plan 9 programs from their native
-    <a href="http://plan9.bell-labs.com/plan9/">Plan 9</a>
+    <a href="http://9p.io/plan9/">Plan 9</a>
     environment to Unix-like operating systems.
 
     <table border=0 cellspacing=0 cellpadding=0 width=100%><tr height=20><td></table>

dist/main.html

@@ -41,7 +41,7 @@ Edit ./^$/,s/<Table/<table border=0 cellspacing=0 cellpadding=0 width=100%/g
     <table border=0 cellspacing=0 cellpadding=0 width=100%><tr height=10><td></table>
     Plan 9 from User Space (aka plan9port)
     is a port of many Plan 9 programs from their native
-    <a href="http://plan9.bell-labs.com/plan9/">Plan 9</a>
+    <a href="http://9p.io/plan9/">Plan 9</a>
     environment to Unix-like operating systems.
 
     <table border=0 cellspacing=0 cellpadding=0 width=100%><tr height=20><td></table>
@@ -89,7 +89,7 @@ Edit ./^$/,s/<Table/<table border=0 cellspacing=0 cellpadding=0 width=100%/g
       <tr><td><td>
 
         Most obviously, plan9port derives from
-        <a href="http://plan9.bell-labs.com/plan9">Plan 9 from Bell Labs</a>
+        <a href="http://9p.io/plan9">Plan 9 from Bell Labs</a>
         and would not exist without the work of the Plan 9 team over the
         past many years.
 
@@ -173,7 +173,7 @@ Edit ./^$/,s/<Table/<table border=0 cellspacing=0 cellpadding=0 width=100%/g
         </a>
         of Plan 9 from User Space for Windows.  Only for reference.
         <br>
-        <a href="http://plan9.bell-labs.com/plan9dist/ureg.html">
+        <a href="https://9p.io/plan9/addons.html">
           Sean Quinlan's 9pm
         </a> &#8722; a port of an earlier Plan 9 (including <a href="man/man1/sam.html"><i>sam</i>(1)</a>) to Windows
         <br>

dist/pkg/main

@@ -5,7 +5,7 @@ depends=plan9port-^(base bin devel dict dist faces font-asian \
 desc='Plan 9 from User Space
  Plan 9 is a distributed computing environment built at Bell Labs 
  starting in the late 1980s. The system can be obtained from Bell Labs 
- at http://plan9.bell-labs.com/plan9 and runs on PCs and a variety
+ at http://9p.io/plan9 and runs on PCs and a variety
  of other platforms.  Plan 9 became a convenient platform for 
  experimenting with new ideas, applications, and services.
  .

dist/unix.html

@@ -19,7 +19,7 @@ Edit ./^$/,s/<Table/<table border=0 cellspacing=0 cellpadding=0 width=100%/g
     </center>
 
     <table border=0 cellspacing=0 cellpadding=0 width=100%><tr height=10><td></table>
-    These are ports of <a href="http://plan9.bell-labs.com/plan9">Plan 9</a>'s
+    These are ports of <a href="http://9p.io/plan9">Plan 9</a>'s
     UTF-8, formatted print, buffered I/O, and regular expression
     libraries, along with mk, a simple replacement for make.
     <p>
@@ -82,7 +82,7 @@ Edit ./^$/,s/<Table/<table border=0 cellspacing=0 cellpadding=0 width=100%/g
         <table border=0 cellspacing=0 cellpadding=0 width=100%><tr height=10><td></table>
         
         <font size=-1>license: original <a href="license-bl.txt">Bell Labs MIT-like</a> 
-        or <a href="http://plan9.bell-labs.com/plan9dist/license.html">Lucent Public License</a></font>
+        or <a href="http://9p.io/plan9/license.html">Lucent Public License</a></font>
 
     </table>
 
@@ -119,7 +119,7 @@ Edit ./^$/,s/<Table/<table border=0 cellspacing=0 cellpadding=0 width=100%/g
         <table border=0 cellspacing=0 cellpadding=0 width=100%><tr height=10><td></table>
         
         <font size=-1>License: original <a href="license-bl.txt">Bell Labs MIT-like</a> 
-        or <a href="http://plan9.bell-labs.com/plan9dist/license.html">Lucent Public License</a></font>
+        or <a href="http://9p.io/plan9/license.html">Lucent Public License</a></font>
 
     </table>
     
@@ -146,7 +146,7 @@ Edit ./^$/,s/<Table/<table border=0 cellspacing=0 cellpadding=0 width=100%/g
         <table border=0 cellspacing=0 cellpadding=0 width=100%><tr height=10><td></table>
         
         <font size=-1>License: <a href="license-vn.txt">Vita Nuova MIT-like</a> 
-        or <a href="http://plan9.bell-labs.com/plan9dist/license.html">Lucent Public License</a></font>
+        or <a href="http://9p.io/plan9/license.html">Lucent Public License</a></font>
     </table>
     
     <table border=0 cellspacing=0 cellpadding=0 width=100%><tr height=20><td></table>
@@ -175,7 +175,7 @@ Edit ./^$/,s/<Table/<table border=0 cellspacing=0 cellpadding=0 width=100%/g
         <table border=0 cellspacing=0 cellpadding=0 width=100%><tr height=10><td></table>
         
         <font size=-1>License: original <a href="license-bl.txt">Bell Labs MIT-like</a> 
-        or <a href="http://plan9.bell-labs.com/plan9dist/license.html">Lucent Public License</a></font>
+        or <a href="http://9p.io/plan9/license.html">Lucent Public License</a></font>
 
     </table>
     
@@ -200,7 +200,7 @@ Edit ./^$/,s/<Table/<table border=0 cellspacing=0 cellpadding=0 width=100%/g
         <table border=0 cellspacing=0 cellpadding=0 width=100%><tr height=10><td></table>
         
         <font size=-1>License: <a href="license-vn.txt">Vita Nuova MIT-like</a> 
-        or <a href="http://plan9.bell-labs.com/plan9dist/license.html">Lucent Public License</a></font>
+        or <a href="http://9p.io/plan9/license.html">Lucent Public License</a></font>
     </table>
 
     <table border=0 cellspacing=0 cellpadding=0 width=100%><tr height=20><td></table>

install.txt

@@ -7,7 +7,7 @@
      DESCRIPTION
           Plan 9 is a distributed computing environment built at Bell
           Labs starting in the late 1980s.  The system can be obtained
-          from Bell Labs at http://plan9.bell-labs.com/plan9 and runs
+          from Bell Labs at http://9p.io/plan9 and runs
           on PCs and a variety of other platforms.  Plan 9 became a
           convenient platform for experimenting with new ideas, appli-
           cations, and services.

man/man1/0intro.1

@@ -5,7 +5,7 @@ intro \- introduction to Plan 9 from User Space
 Plan 9 is a distributed computing environment built
 at Bell Labs starting in the late 1980s.
 The system can be obtained from Bell Labs at
-.B http://plan9.bell-labs.com/plan9
+.B http://9p.io/plan9
 and runs on PCs and a variety of other platforms.
 Plan 9 became a convenient platform for experimenting
 with new ideas, applications, and services.

unix/NOTICE.bio

@@ -30,5 +30,5 @@ THE SOFTWARE.
 ----
 
 This software is also made available under the Lucent Public License
-version 1.02; see http://plan9.bell-labs.com/plan9dist/license.html
+version 1.02; see http://9p.io/plan9/license.html
 

unix/NOTICE.fmt

@@ -21,5 +21,5 @@ to Russ Cox <rsc@swtch.com>.
 ----
 
 This software is also made available under the Lucent Public License
-version 1.02; see http://plan9.bell-labs.com/plan9dist/license.html
+version 1.02; see http://9p.io/plan9/license.html
 

unix/NOTICE.mk

@@ -30,5 +30,5 @@ THE SOFTWARE.
 ----
 
 This software is also made available under the Lucent Public License
-version 1.02; see http://plan9.bell-labs.com/plan9dist/license.html
+version 1.02; see http://9p.io/plan9/license.html
 

unix/NOTICE.regexp

@@ -21,5 +21,5 @@ to Russ Cox <rsc@swtch.com>.
 ----
 
 This software is also made available under the Lucent Public License
-version 1.02; see http://plan9.bell-labs.com/plan9dist/license.html
+version 1.02; see http://9p.io/plan9/license.html
 

unix/NOTICE.utf

@@ -21,5 +21,5 @@ to Russ Cox <rsc@swtch.com>.
 ----
 
 This software is also made available under the Lucent Public License
-version 1.02; see http://plan9.bell-labs.com/plan9dist/license.html
+version 1.02; see http://9p.io/plan9/license.html