Add ids to all sections

[SVN r77681]

doc/src/faq.xml

@@ -5,7 +5,7 @@
 <chapter id="bbv2.faq">
   <title>Frequently Asked Questions</title>
 
-  <section>
+  <section id="bbv2.faq.featurevalue">
     <title>
       How do I get the current value of feature in Jamfile?
     </title>
@@ -41,7 +41,7 @@
     </itemizedlist>
   </section>
 
-  <section>
+  <section id="bbv2.faq.duplicate">
     <title>
       I am getting a "Duplicate name of actual target" error. What does that
       mean?
@@ -174,7 +174,7 @@ exe a : a.cpp : &lt;include&gt;$(SOME_LIBRARY_PATH) ;
     </para>
   </section>
 
-  <section>
+  <section id="bbv2.faq.proporder">
     <title>
       How to control properties order?
     </title>
@@ -203,7 +203,7 @@ exe a : a.cpp : &lt;include&gt;a&amp;&amp;b ;
     </para>
   </section>
 
-  <section>
+  <section id="bbv2.faq.liborder">
     <title>
       How to control the library linking order on Unix?
     </title>
@@ -257,7 +257,7 @@ local gtk_includes = [ SHELL "gtk-config --cflags" ] ;
     </para>
   </section>
 
-  <section>
+  <section id="bbv2.faq.projectroot">
     <title>
       How to get the project root (a.k.a. Jamroot) location?
     </title>
@@ -272,7 +272,7 @@ path-constant TOP : . ;
     </para>
   </section>
 
-  <section>
+  <section id="bbv2.faq.flags">
     <title>
       How to change compilation flags for one file?
     </title>