Merge pull request #534 in SNORT/snort3 from crc_primes to master

Merge pull request #534 in SNORT/snort3 from crc_primes to master

Squashed commit of the following:

commit 4284e0e3811618f60ad9833d55a0e89d334787f5
Author: Russ Combs <rucombs@cisco.com>
Date:   Mon Jun 20 12:38:46 2016 -0400

    fix typos

commit 511f6a943ab208c20df9f115c849d31e332ce108
Author: Russ Combs <rucombs@cisco.com>
Date:   Sat Jun 18 18:48:43 2016 -0400

    update style guide

commit b19843eeec56d464cd01266526ace717a86712d1
Author: Russ Combs <rucombs@cisco.com>
Date:   Sat Jun 18 10:43:05 2016 -0400

    add missing primes, reformat