Update Changelog for 2.0.1
dns: parse and store TXT responses

This way the TXT data can be logged by the loggers.

Ticket #1158
dns json: log TXT response data

Log TXT data in the rdata field.
dns: add tests for TXT response parsing

Add valid and invalid examples.
tls: check SSL3/TLS version per record

Set event if SSL3/TLS record isn't within the acceptable range.
Checks if libnetfilter_log is found on the system
and enable it if it's specified.
Adds a configuration example for nflog support in suricata.yaml
Updating the Tmm Id for declaration of nflog capture mode
Adds nflog error code
Bootstraping NFLOG capture mode
Implements NFLOG runmode
Declare a wrapper to parse group option for nflog
Adds nflog option
This patch adds the fields into PacketVars struct to setup a packet from a nflog message
nflog: improve error handling on NOBUFS

Don't fall through to handle_packet on any NOBUFS condition. Make
sure we catch all NOBUFS.
nflog: fix typo rising->raising
Registration for SIGHUP notification - for loggers interested
in file rotation on SIGHUP.
Add a rotation flag to LogFileCtx which loggers can use to register
for log rotation.  Have the LogFileCtx handle the log rotation.
Add macros for access to the underlying buffer and offset.
Useful for using passing the buffer through to another writer
such as LogFileCtx.
Add signal based file rotation for:
- alert debug log
- fast log
- stats log
- dns log
- drop log
- file log
- http log
- tls log
- eve/json log