Completed and tested (simple test) the TURN server and command line STUN/TURN client

git-svn-id: https://svn.pjsip.org/repos/pjproject/trunk@1054 74dad513-b988-da41-8d7b-12977e46ad98
diff --git a/pjlib/include/pj/hash.h b/pjlib/include/pj/hash.h
index da76851..ed1805d 100644
--- a/pjlib/include/pj/hash.h
+++ b/pjlib/include/pj/hash.h
@@ -119,7 +119,8 @@
  * @param pool	    the pool to allocate the new entry if a new entry has to be
  *		    created.
  * @param ht	    the hash table.
- * @param key	    the key.
+ * @param key	    the key, which MUST point to buffer that remains valid
+ *		    for the duration of the entry.
  * @param keylen    the length of the key, or PJ_HASH_KEY_STRING to use the 
  *		    string length of the key.
  * @param hval	    if the value is not zero, then the hash table will use