Update package to newest version.

Changes:

2016/08/30 : 1.6.9
    - DOC: Updated 51Degrees readme.
    - BUG/MAJOR: stream: properly mark the server address as unset on connect retry
    - BUG/MINOR: payload: fix SSLv2 version parser
    - MINOR: cli: allow the semi-colon to be escaped on the CLI

2016/08/14 : 1.6.8
    - BUG/MEDIUM: lua: the function txn_done() from sample fetches can crash
    - BUG/MEDIUM: lua: the function txn_done() from action wrapper can crash
    - BUG/MINOR: peers: Fix peers data decoding issue
    - DOC: lua: remove old functions
    - BUG/MEDIUM: lua: somme HTTP manipulation functions are called without valid requests
    - BUG/MEDIUM: stream-int: completely detach connection on connect error
    - DOC: minor typo fixes to improve HTML parsing by haproxy-dconv
    - BUILD: make proto_tcp.c compatible with musl library
    - BUG/MAJOR: compression: initialize avail_in/next_in even during flush
    - BUG/MEDIUM: samples: make smp_dup() always duplicate the sample
    - MINOR: sample: implement smp_is_safe() and smp_make_safe()
    - MINOR: sample: provide smp_is_rw() and smp_make_rw()
    - BUG/MAJOR: server: the "sni" directive could randomly cause trouble
    - BUG/MEDIUM: stick-tables: do not fail on string keys with no allocated size
    - BUG/MEDIUM: stick-table: properly convert binary samples to keys
    - MINOR: sample: use smp_make_rw() in upper/lower converters
    - BUG/MINOR: peers: some updates are pushed twice after a resync.
    - BUG/MINOR: peers: empty chunks after a resync.
    - BUG/MAJOR: stick-counters: possible crash when using sc_trackers with wrong table

2016/07/13 : 1.6.7
    - MINOR: new function my_realloc2 = realloc + free upon failure
    - CLEANUP: fixed some usages of realloc leading to memory leak
    - Revert "BUG/MINOR: ssl: fix potential memory leak in ssl_sock_load_dh_params()"
    - BUG/MEDIUM: dns: fix alignment issues in the DNS response parser
    - BUG/MINOR: Fix endiness issue in DNS header creation code

(morr)