- fix use of \refmodule markup

- correct some module names, add hyperlinks
- wrap some long lines

Doc/lib/libdummythread.tex

@@ -2,11 +2,11 @@
          Drop-in replacement for the \module{thread} module}
 
 \declaremodule[dummythread]{standard}{dummy_thread}
-\modulesynopsis{Drop-in replacement for the thread module.}
+\modulesynopsis{Drop-in replacement for the \refmodule{thread} module.}
 
-This module provides a duplicate interface to the \refmodule{thread} module. It
-is meant to be imported when the \module{thread} module is not provided on a
-platform.
+This module provides a duplicate interface to the \refmodule{thread}
+module.  It is meant to be imported when the \refmodule{thread} module
+is not provided on a platform.
 
 Suggested usage is:
 

Doc/lib/libdummythreading.tex

-\section{\module{dummy_thread} ---
+\section{\module{dummy_threading} ---
          Drop-in replacement for the \module{threading} module}
 
 \declaremodule[dummythreading]{standard}{dummy_threading}
-\modulesynopsis{Drop-in replacement for the threading module.}
+\modulesynopsis{Drop-in replacement for the \refmodule{threading} module.}
 
-This module provides a duplicate interface to the \refmodule{threading} module. It
-is meant to be imported when the \module{threading} module is not provided on a
-platform.
+This module provides a duplicate interface to the
+\refmodule{threading} module.  It is meant to be imported when the
+\refmodule{thread} module is not provided on a platform.
 
 Suggested usage is:
 

Doc/lib/libthread.tex

@@ -18,8 +18,9 @@ semaphores}) are provided.
 The module is optional.  It is supported on Windows, Linux, SGI
 IRIX, Solaris 2.x, as well as on systems that have a \POSIX{} thread
 (a.k.a. ``pthread'') implementation.  For systems lacking the \module{thread}
-module, the \refmodule{dummy_thread} module is available.  It duplicates this
-module's interface and can be used as a drop-in replacement.
+module, the \refmodule[dummythread]{dummy_thread} module is available.
+It duplicates this module's interface and can be
+used as a drop-in replacement.
 \index{pthreads}
 \indexii{threads}{\POSIX}
 

Doc/lib/libthreading.tex

@@ -8,8 +8,9 @@
 This module constructs higher-level threading interfaces on top of the 
 lower level \refmodule{thread} module.
 
-The \refmodule{dummy_threading} module is provided for situations where
-\module{threading} cannot be used because \module{thread} is missing.
+The \refmodule[dummythreading]{dummy_threading} module is provided for
+situations where \module{threading} cannot be used because
+\refmodule{thread} is missing.
 
 This module is safe for use with \samp{from threading import *}.  It
 defines the following functions and objects: