docs/manual/intro-motivation.xml: Remove some bits that no longer apply, update others (#551642).

Original commit message from CVS:
* docs/manual/intro-motivation.xml::
Remove some bits that no longer apply, update others (#551642).

ChangeLog

@@ -1,3 +1,8 @@
+2008-09-11  Tim-Philipp Müller  <tim.muller at collabora co uk>
+
+	* docs/manual/intro-motivation.xml::
+	  Remove some bits that no longer apply, update others (#551642).
+
 2008-09-09  Tim-Philipp Müller  <tim.muller at collabora co uk>
 
 	* win32/common/config.h.in:

docs/manual/intro-motivation.xml

@@ -223,9 +223,7 @@
       <itemizedlist>
         <listitem>
 	  <para>
-	    using GLib's <function>g_mem_chunk</function> and fast
+	    using GLib's <classname>GSlice</classname> allocator
-            non-blocking allocation algorithms where possible to
-            minimize dynamic memory allocation.
 	  </para>
         </listitem>
         <listitem>
@@ -252,10 +250,7 @@
         </listitem>
         <listitem>
 	  <para>
-	    the use of cothreads to minimize the threading overhead.
+	    dedicated streaming threads, with scheduling handled by the kernel.
-            Cothreads are a simple and fast user-space method for
-            switching between subtasks. Cothreads were measured to
-	    consume as little as 600 cpu cycles.
 	  </para>
         </listitem>
         <listitem>
@@ -270,11 +265,6 @@
 	    used.
 	  </para>
         </listitem>
-        <listitem>
-	  <para>
-	    all critical data passing is free of locks and mutexes.
-	  </para>
-        </listitem>
       </itemizedlist>
     </section>