[Axis2] more memory leak fixes

[Sahan Gamage]

Hi,

I have fixed a memory leak in the axis2_om_element.c.
Please apply the patch and commit the code.

- Sahan

Index: om/src/axis2_om_element.c
===================================================================
--- om/src/axis2_om_element.c   (revision 354357)
+++ om/src/axis2_om_element.c   (working copy)
@@ -318,6 +318,7 @@
                     (axis2_om_namespace_t *) (ns), env),uri) == 0)
             {
               
+               AXIS2_FREE ((*env)->allocator, hashindex);
                 return (axis2_om_namespace_t *) (ns);
             }
         }
@@ -428,6 +429,7 @@
             if (AXIS2_STRCMP(AXIS2_OM_NAMESPACE_GET_URI(
                     (axis2_om_namespace_t *)(ns), env), uri) == 0)
             {
+               AXIS2_FREE ((*env)->allocator, hash_index);
                 return (axis2_om_namespace_t *) (ns);
             }
         }