Support binary standard_input in ssh_io
inets: Fix streaming with single chunk body

Receiving HTTP response with chunked transfer encoding in a single
TCP message should produce stream messages for response body when
streaming mode is used for httpc.
ssl: fix max sequence number so it does not overflow

The old value of 18446744073709552000 was calculated using math:pow
which returns float therefore isn't precise. And it would overflow:

erlang:integer_to_list(18446744073709552000, 16) = "10000000000000180"

This patch changes MAX_SEQENCE_NUMBER to value calculated with bitwise
shift:
(1 bsl 64) - 1 = 18446744073709551615
erts: Fix bug in etp-block commands
doc: Move Maps reference documentation to expressions
Merge branch 'egil/move-maps-doc' into maint

* egil/move-maps-doc:
  doc: Move Maps reference documentation to expressions
Merge branch 'sverk/etp-block-fix' into maint

* sverk/etp-block-fix:
  erts: Fix bug in etp-block commands
Merge branch 'dz/fix_ssl_max_seq_num' into maint

* dz/fix_ssl_max_seq_num:
  ssl: fix max sequence number so it does not overflow
Merge branch 'jv/ssh-io-binary' into maint

* jv/ssh-io-binary:
  Support binary standard_input in ssh_io
Merge branch 'scrapinghub/stream_for_chunked_single_message' into maint

* scrapinghub/stream_for_chunked_single_message:
  inets: Fix streaming with single chunk body
Change ERTS vsn