Use the wrapper for configure with coverity

Author: acv

.travis.yml

@@ -25,6 +25,6 @@ addons:
       version: 1.2.0
       description: WifiDog Captive Portal Gateway
     notification_email: [email protected]
-    build_command_prepend: ./autogen.sh && ./configure
+    build_command_prepend: ./autogen.sh && ./.travis_configure_wrapper.sh
     build_command: make
     branch_pattern: coverity_scan