Minor compile cleanup
  - Add .gitignore
  - Changed ASFVOLT_LOG macro to recognize printf paramter warnings
  - Removed -Wno-sign-compare from make.  Fix warning in the source.

Change-Id: I5d98b327d906e980509ce071b5060c95635746a1
diff --git a/src/bal_subscriber_terminal_hdlr.c b/src/bal_subscriber_terminal_hdlr.c
index 30d89fa..c0627ac 100755
--- a/src/bal_subscriber_terminal_hdlr.c
+++ b/src/bal_subscriber_terminal_hdlr.c
@@ -34,7 +34,7 @@
     bcmbal_subscriber_terminal_key subs_terminal_key;
     bcmos_bool skip_onu = BCMOS_FALSE;
 
-    int idx;
+    size_t idx;
 
     subs_terminal_key.sub_term_id = onu_cfg->key->sub_term_id;
     subs_terminal_key.intf_id = onu_cfg->key->intf_id;