[age restriction] progress 8/n

More work towards support for extensions and age restriction

- updated gana
- added handler for DB-Event
- added TEH_extensions_init() and _done()
- added global for age restriction
- added stub for post handler
- added SQL-table for extension metadata
- added enum type for extensions and other data structures

Also:
- fixed some warnings -Wmaybe-unitialized

1 files changed, 9 insertions, 1 deletions

diff --git a/src/exchange/taler-exchange-httpd.c b/src/exchange/taler-exchange-httpd.c
index 0ba608ff4..0535a54ea 100644
--- a/src/exchange/taler-exchange-httpd.c
+++ b/src/exchange/taler-exchange-httpd.c
@@ -1799,7 +1799,8 @@ do_shutdown (void *cls)
   TEH_kyc_proof_cleanup ();
   if (NULL != mhd)
     MHD_stop_daemon (mhd);
-  TEH_WIRE_done ();
+  TEH_wire_done ();
+  TEH_extensions_done ();
   TEH_keys_finished ();
   if (NULL != TEH_plugin)
   {
@@ -1861,6 +1862,13 @@ run (void *cls,
     return;
   }
   if (GNUNET_OK !=
+      TEH_extensions_init ())
+  {
+    global_ret = EXIT_FAILURE;
+    GNUNET_SCHEDULER_shutdown ();
+    return;
+  }
+  if (GNUNET_OK !=
       TEH_keys_init ())
   {
     global_ret = EXIT_FAILURE;