Added "/otr fp" to show users fingerprint

src/otr.c

@@ -259,6 +259,16 @@ otr_account_load(ProfAccount *account)
     return;
 }
 
+char *
+otr_get_fingerprint(void)
+{
+    char fingerprint[45];
+    otrl_privkey_fingerprint(user_state, fingerprint, jid, "xmpp");
+    char *result = strdup(fingerprint);
+
+    return result;
+}
+
 char *
 otr_encrypt_message(const char * const to, const char * const message)
 {