Confirm commit:

- Removed confirm-commit 1.0 capability (only 1.1 present)
- Made startup capability conditional (as confirmed-commit)
- Fixed startup error when rollback did not exist
- Adjust snmp commit calls
- Move failsafe to lib
- Test: Minimized test application, test capability

apps/backend/backend_startup.h

@@ -44,7 +44,6 @@
  */ 
 int startup_mode_startup(clicon_handle h, char *db, cbuf *cbret);
 int startup_extraxml(clicon_handle h, char *file, cbuf *cbret);
-int startup_failsafe(clicon_handle h);
 int startup_module_state(clicon_handle h, yang_stmt *yspec);
 
 #endif  /* _BACKEND_STARTUP_H_ */