[RELEASE] Released version 2.0.1

Released version 2.0.1 with the following main changes :
    - BUG/MEDIUM: h2/htx: Update data length of the HTX when the cookie list is built
    - BUG/MINOR: lua/htx: Make txn.req_req_* and txn.res_rep_* HTX aware
    - BUG/MINOR: mux-h1: Add the header connection in lower case in outgoing messages
    - BUG/MEDIUM: compression: Set Vary: Accept-Encoding for compressed responses
    - MINOR: htx: Add the function htx_change_blk_value_len()
    - BUG/MEDIUM: htx: Fully update HTX message when the block value is changed
    - BUG/MEDIUM: mux-h2: Reset padlen when several frames are demux
    - BUG/MEDIUM: mux-h2: Remove the padding length when a DATA frame size is checked
    - BUG/MEDIUM: lb_fwlc: Don't test the server's lb_tree from outside the lock
    - BUG/MAJOR: sample: Wrong stick-table name parsing in "if/unless" ACL condition.
    - BUG/MINOR: mworker-prog: Fix segmentation fault during cfgparse
    - BUG/MEDIUM: mworker: don't call the thread and fdtab deinit
    - BUG/MEDIUM: mworker/cli: command pipelining doesn't work anymore
    - BUILD: mworker: silence two printf format warnings around getpid()
    - BUILD: makefile: use :space: instead of digits to count commits
    - BUILD: makefile: do not rely on shell substitutions to determine git version
    - BUG/MINOR: spoe: Fix memory leak if failing to allocate memory
    - BUG/MEDIUM: stream_interface: Don't add SI_FL_ERR the state is < SI_ST_CON.
    - BUG/MEDIUM: connections: Always add the xprt handshake if needed.
    - BUG/MEDIUM: ssl: Don't do anything in ssl_subscribe if we have no ctx.
    - BUG/MINOR: htx: Save hdrs_bytes when the HTX start-line is replaced
    - BUG/MAJOR: mux-h1: Don't crush trash chunk area when outgoing message is formatted
    - BUG/MINOR: memory: Set objects size for pools in the per-thread cache
    - BUG/MINOR: log: Detect missing sampling ranges in config
    - BUG/MEDIUM: proto_htx: Don't add EOM on 1xx informational messages
    - BUG/MEDIUM: mux-h1: Use buf_room_for_htx_data() to detect too large messages
    - BUG/MINOR: mux-h1: Make format errors during output formatting fatal
4 files changed