Squashed commit of the following:

Squashed commit of the following:

commit 3b226926b43af0665ba14c502c4a23cd8589811a
Author: Russ Combs <rucombs@cisco.com>
Date:   Sat Aug 5 10:55:06 2017 -0400

    rules: make table consistency checks debug only

commit 1f1901fecb88d2871fb4088d6f5f0955767ea5a3
Author: Russ Combs <rucombs@cisco.com>
Date:   Fri Aug 4 14:01:13 2017 -0400

    doc: add stdlog usage example

commit f7f4dd5cef22a138582fe8ecad2d03f0b8a8e611
Author: Russ Combs <rucombs@cisco.com>
Date:   Fri Aug 4 13:26:46 2017 -0400

    build: remove a4 from version string

commit 057220564faa84541f3882b2ea4e1d04df33557a
Author: Russ Combs <rucombs@cisco.com>
Date:   Fri Aug 4 12:13:32 2017 -0400

    conf: convert string ranges to interval params

commit 2c997e0a969bea72bd641e519e48de4052753a16
Author: Russ Combs <rucombs@cisco.com>
Date:   Fri Aug 4 11:03:29 2017 -0400

    conf: add explicit interval type

commit 756be7ac77ae96ef026aa92a4af268708ebf4748
Author: Russ Combs <rucombs@cisco.com>
Date:   Fri Aug 4 07:32:40 2017 -0400

    spell check: fix typo

commit fc7830bd27d6718a4bd439cde33bfc641d8363b7
Author: Russ Combs <rucombs@cisco.com>
Date:   Thu Aug 3 22:02:35 2017 -0400

    snort2lua: convert dsize:a<>b to dsize:a<=>b for consistency with other rule options