Fix the class docs for the rst-syntax errors.

- Generate a correkt rst-syntax for the [/code] inline markup.
  (http://www.sphinx-doc.org/en/1.6.5/rest.html#inline-markup)
- Fix xml souce bugs

for the sphinx's rst syntax werrors:

class_area.rst:319: WARNING: Inline literal start-string without end-string.
class_area2d.rst:287: WARNING: Inline literal start-string without end-string.
class_audioserver.rst:287: WARNING: Inline literal start-string without end-string.
class_control.rst:509: WARNING: Inline literal start-string without end-string.
class_image.rst:422: WARNING: Inline literal start-string without end-string.
class_image.rst:434: WARNING: Inline literal start-string without end-string.
class_inputevent.rst:74: WARNING: Inline literal start-string without end-string.
class_inputeventaction.rst:45: WARNING: Inline literal start-string without end-string.
class_inputmap.rst:47: WARNING: Inline literal start-string without end-string.
class_kinematicbody.rst:80: WARNING: Inline interpreted text or phrase reference start-string without end-string.
class_kinematicbody2d.rst:80: WARNING: Inline interpreted text or phrase reference start-string without end-string.
class_line2d.rst:182: WARNING: Inline literal start-string without end-string.
class_thread.rst:51: WARNING: Inline literal start-string without end-string.
class_treeitem.rst:160: WARNING: Inline literal start-string without end-string.

1 files changed, 1 insertions, 1 deletions

diff --git a/doc/classes/InputEvent.xml b/doc/classes/InputEvent.xml
index 1cebed7ef..e4404fc25 100644
--- a/doc/classes/InputEvent.xml
+++ b/doc/classes/InputEvent.xml
@@ -18,7 +18,7 @@
 			<argument index="0" name="event" type="InputEvent">
 			</argument>
 			<description>
-				Returns [code]true[/code] if this event matches [code]event[event].
+				Returns [code]true[/code] if this event matches [code]event[/code].
 			</description>
 		</method>
 		<method name="as_text" qualifiers="const">