[423130] set content type priority to low

Bug: https://bugs.eclipse.org/bugs/show_bug.cgi?id=423130
Change-Id: Ib16a7a68088de56fad6b69d7a5bcda82473f0ddd
Signed-off-by: Florian Thienel <florian@thienel.org>
diff --git a/org.eclipse.vex.xhtml/plugin.xml b/org.eclipse.vex.xhtml/plugin.xml
index 00ffcb9..18c38e2 100644
--- a/org.eclipse.vex.xhtml/plugin.xml
+++ b/org.eclipse.vex.xhtml/plugin.xml
@@ -2,8 +2,12 @@
 <?eclipse version="3.4"?>

 <plugin>

 	<extension point="org.eclipse.core.contenttype.contentTypes">

-		<content-type id="org.eclipse.vex.ui.xhtml" name="%contentType.name"

-			base-type="org.eclipse.vex.ui.XmlDocument" file-extensions="xml, xhtml">

+		<content-type

+        base-type="org.eclipse.vex.ui.XmlDocument"

+        file-extensions="xml,xhtml"

+        id="org.eclipse.vex.ui.xhtml"

+        name="%contentType.name"

+        priority="low">

 		</content-type>

 	</extension>

  <extension