Throw new event for heartbeat messages.

Not tested.
add is_orig to heartbeat event
default to TLS when not being able to determine version
detect and alert on simple case of heartbleed
polish script and probably detect encrypted attacks too.
fix tabs.
make tls heartbeat messages a bit better.
add to local.bro, add disclaimer
also extract payload data in ssl_heartbeat
enable detection of encrypted heartbleeds.
Merge branch 'fastpath' into topic/bernhard/heartbeat
rip out state handline from ssl analyzer.

still seems to work, but basically untested.
Fix a memory leak in ASCII log writer.
Add Intel::ADDR lookup to host field

IP addresses are often seen in the HTTP host field; this change checks if the value in the host field is a valid IP address and processes the Intel::seen event to check for an Intel::ADDR indicator.
Update http-headers.bro
Update http-headers.bro
Update http-headers.bro
Refactor initialization of ASCII log writer options.
Nicer notices for heartbleed.

Duplicates are now excluded and the notice texts contain a bit more useful information.
Merge remote-tracking branch 'origin/fastpath'

* origin/fastpath:
  Change how input/logging threads set their name.
  Fix bug when clearing Bloom filter contents.