Doc: replace deprecated QDoc commands

The \i and \o commands were replaced with \li and
\bold was replaced with \b in QDoc for Qt 5.

The \input command was replaced with \include in the docs.

Change-Id: I257d1bebb8ebc739ca20e0d29fcf0406ecb14534
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>

src/plugins/macros/macroevent.cpp

@@ -41,10 +41,10 @@ using namespace Macros;
 
     An event stores information so it can be replayed. An event can be:
     \list
-    \o menu action
-    \o key event on an editor
-    \o find/replace usage
-    \o ...
+    \li menu action
+    \li key event on an editor
+    \li find/replace usage
+    \li ...
     \endlist
 
     The information are stored in a map of QVariants (using quint8 for keys).

src/plugins/macros/macromanager.cpp

@@ -80,8 +80,8 @@ using namespace Macros::Internal;
 
     There are two important methods in this class that can be used outside the Macros plugin:
     \list
-    \o registerEventHandler: add a new event handler
-    \o registerAction: add a macro event when this action is triggered
+    \li registerEventHandler: add a new event handler
+    \li registerAction: add a macro event when this action is triggered
     \endlist
 
     This class is a singleton and can be accessed using the instance method.