Make unexpected pipe errors fatal as precaution.

Addresses BIT-1260.
adding a function in dnp3-analyzer.pac to translate the time stamp format
Merge branch 'fastpath' of git://git.bro-ids.org/bro into fastpath
new ssl extension type from iana and a few other ssl const changes.
Merge remote-tracking branch 'origin/fastpath'

* origin/fastpath:
  new ssl extension type from iana and a few other ssl const changes.
  adding a function in dnp3-analyzer.pac to translate the time stamp format
  Make unexpected pipe errors fatal as precaution.

I added a lenght parameter to the DNP3 time conversion function to not
accidentally run into trouble later if there were ever any other
buffers passed in.