Partly revert previous commit. The doxygen style escape sequences look

nice on the web, but make the source comments really hard to read.
Therefore copy the command descriptions preformatted to html.

server/commands/client_commands.c

@@ -53,7 +53,9 @@ test_func_func(Client *c, int argc, char **argv)
  *
  * It sends back a string of info about the server to the client.
  *
+ *\verbatim
  * Usage: hello
+ *\endverbatim
  *
  * \todo  Give \em real info about the server/lcd
  */
@@ -82,7 +84,9 @@ hello_func(Client *c, int argc, char **argv)
  *
  * The function does not respond to the client: it simply cuts connection.
  *
+ *\verbatim
  * Usage: bye
+ *\endverbatim
  */
 int
 bye_func(Client *c, int argc, char **argv)
@@ -99,7 +103,9 @@ bye_func(Client *c, int argc, char **argv)
 /**
  * Sets info about the client, such as its name
  *
- * Usage: client_set -name \<id\>
+ *\verbatim
+ * Usage: client_set -name <id>
+ *\endverbatim
  */
 int
 client_set_func(Client *c, int argc, char **argv)
@@ -156,7 +162,9 @@ client_set_func(Client *c, int argc, char **argv)
  * Tells the server the client would like to accept keypresses
  * of a particular type
  *
- * Usage: client_add_key [-exclusively|-shared] {\<key\>}+
+ *\verbatim
+ * Usage: client_add_key [-exclusively|-shared] {<key>}+
+ *\endverbatim
  */
 int
 client_add_key_func(Client *c, int argc, char **argv)
@@ -199,7 +207,9 @@ client_add_key_func(Client *c, int argc, char **argv)
  * Tells the server the client would NOT like to accept keypresses
  * of a particular type
  *
- * Usage: client_del_key {\<key\>}+
+ *\verbatim
+ * Usage: client_del_key {<key>}+
+ *\endverbatim
  */
 int
 client_del_key_func(Client *c, int argc, char **argv)
@@ -225,7 +235,9 @@ client_del_key_func(Client *c, int argc, char **argv)
 /**
  * Toggles the backlight, if enabled.
  *
+ *\verbatim
  * Usage: backlight {on|off|toggle|blink|flash}
+ *\endverbatim
  */
 int
 backlight_func(Client *c, int argc, char **argv)
@@ -271,7 +283,9 @@ backlight_func(Client *c, int argc, char **argv)
 /**
  * Sends back information about the loaded drivers.
  *
+ *\verbatim
  * Usage: info
+ *\endverbatim
  */
 int
 info_func(Client *c, int argc, char **argv)