Add Task portal type as a possible predecessor to MileStone.

Fix form field.

bt5/erp5_project/SkinTemplateItem/portal_skins/erp5_project/ProjectLine_viewConstraint/my_predecessor_title_list.xml

@@ -9,7 +9,9 @@
         <item>
             <key> <string>delegated_list</string> </key>
             <value>
-              <list/>
+              <list>
+                <string>portal_type</string>
+              </list>
             </value>
         </item>
         <item>
@@ -77,6 +79,21 @@
                     <key> <string>form_id</string> </key>
                     <value> <string>ProjectLine_viewFieldLibrary</string> </value>
                 </item>
+                <item>
+                    <key> <string>portal_type</string> </key>
+                    <value>
+                      <list>
+                        <tuple>
+                          <string>Project Line</string>
+                          <string>Project Line</string>
+                        </tuple>
+                        <tuple>
+                          <string>Task</string>
+                          <string>Task</string>
+                        </tuple>
+                      </list>
+                    </value>
+                </item>
                 <item>
                     <key> <string>target</string> </key>
                     <value> <string>Click to edit the target</string> </value>

bt5/erp5_project/SkinTemplateItem/portal_skins/erp5_project/Project_viewMilestone/listbox_quantity.xml

@@ -185,7 +185,7 @@
                 </item>
                 <item>
                     <key> <string>editable</string> </key>
-                    <value> <int>1</int> </value>
+                    <value> <int>0</int> </value>
                 </item>
                 <item>
                     <key> <string>enabled</string> </key>

bt5/erp5_project/bt/revision

-805
\ No newline at end of file
+806
\ No newline at end of file