Updates for the Intel Framework.

 - Intel importing format has changed (refer to docs).

 - All string matching is now case insensitive.

 - SMTP intel script has been updated to extract email
   addresses correctly.

 - Small fix sneaking into the smtp base script to actually
   extract individual email addresses in the To: field
   correctly.
Remove the intel insertion after heuristically detecting ssh bruteforcing.
Merge remote-tracking branch 'origin/master' into topic/seth/intel-updates
Some script reorg and a new intel extension script.

  - policy/frameworks/intel/seen is the new location for the scripts
    that push data into the intel framework for checking.

  - The new policy/frameworks/intel/do_notice script adds an example
    mechanism for data driven notices.
Merge remote-tracking branch 'origin/topic/seth/intel-updates'

* origin/topic/seth/intel-updates:
  Some script reorg and a new intel extension script.
  Remove the intel insertion after heuristically detecting ssh bruteforcing.
  Updates for the Intel Framework.