Merge pull request #1083 in SNORT/snort3 from appid_foo to master

Merge pull request #1083 in SNORT/snort3 from appid_foo to master

Squashed commit of the following:

commit cfeb653e4d5bc599cd5ccf11f5935f1f21dee1a5
Author: Russ Combs (rucombs) <rucombs@cisco.com>
Date:   Fri Dec 8 13:11:31 2017 -0500

    reputation: tweak warning message

commit 8f8d56020559c0c388f932bf8886ea31f1bcad44
Author: Russ Combs (rucombs) <rucombs@cisco.com>
Date:   Fri Dec 8 10:15:51 2017 -0500

    appid: tweak warnings and errors

commit fccbb5a85c09a1bd817834b59c2c77a53f8fadab
Author: Russ Combs (rucombs) <rucombs@cisco.com>
Date:   Fri Dec 8 09:54:51 2017 -0500

    appid: close all Lua states when thread exits