Add french layout variant oss to simple engine

Review URL: https://codereview.appspot.com/14115044
Patch from Julien Humbert <julroy67@gmail.com>.

engine/simple.xml.in

@@ -247,6 +247,18 @@
                         <icon>ibus-keyboard</icon>
                         <rank>99</rank>
                 </engine>
+                <engine>
+                        <name>xkb:fr:oss:fra</name>
+                        <language>fra</language>
+                        <license>GPL</license>
+                        <author>Peng Huang &lt;shawn.p.huang@gmail.com&gt;</author>
+                        <layout>fr</layout>
+                        <layout_variant>oss</layout_variant>
+                        <longname>French (alternative)</longname>
+                        <description>French (alternative)</description>
+                        <icon>ibus-keyboard</icon>
+                        <rank>99</rank>
+                </engine>
                 <engine>
                         <name>xkb:fr:bepo:fra</name>
                         <language>fra</language>
@@ -257,7 +269,7 @@
                         <longname>French (Bepo, ergonomic, Dvorak way)</longname>
                         <description>French (Bepo, ergonomic, Dvorak way)</description>
                         <icon>ibus-keyboard</icon>
-			<rank>1</rank>
+                        <rank>99</rank>
                 </engine>
                 <engine>
                         <name>xkb:fr:dvorak:fra</name>
@@ -269,7 +281,7 @@
                         <longname>French (Dvorak)</longname>
                         <description>French (Dvorak)</description>
                         <icon>ibus-keyboard</icon>
-			<rank>99</rank>
+                        <rank>1</rank>
                 </engine>
 		<engine>
 			<name>xkb:de::ger</name>