Remove the deprecated run_test start program

It was replaced by ct_run in R14B.
Merge branch 'bjorn/unicode-doc/OTP-10852'

* bjorn/unicode-doc/OTP-10852:
  file: Document list_dir_all/1 and read_link_all/1
  file: Remove note about Unicode handling being experimental
  filelib: Update documentation
ssl: Add missing option and links
Merge branch 'ia/ssl/doc'

* ia/ssl/doc:
  ssl: Add missing option and links
Merge branch 'pan/unicode_printable_ranges'

* pan/unicode_printable_ranges:
  Adapt stdlib tests to ~tp detecting latin1 binaries
  Update primary bootstrap
  Make wx debugger use +pc flag when applicable
  Correct misspelled comments and space at lin ends
  Make ~tp output latin1 binaries as strings if possible
  Leave the +pc handling to io and io_lib_pretty
  Remove newly introduced warning in erlexec.c
  Make shell_SUITE:otp_10302 use +pc unicode when needed
  Fix io_proto_SUITE to handle the new io_lib_pretty:print
  Add testcase for +pc and io:printable_range/0
  Make printing of UTF-8 in binaries behave like lists.
  Document +pc flag and io:printable_range/0
  Add usage of and spec for io:printable_range/0
  Add +pc {latin1|unicode} switch and io:printable_range/0
  Fix some Unicode issues

OTP-18084
Merge branch 'hb/file_name_type/OTP-10852'

* hb/file_name_type/OTP-10852:
  Introduce new type file:name_all()
Merge branch 'ia/inets/httpc-pipelin-vs-persisten-and-httpd-ssl-conf'

* ia/inets/httpc-pipelin-vs-persisten-and-httpd-ssl-conf:
  inets httpd: Handle ipfamily option correctly when listning to port 0
  inets: Improve ssl handling
  inets httpd: The option modules now defaults to its documented default value.
  inets httpc: Corrected separation of pipelining and persisten connections
[stdlib] Let the shell turn off echo while skipping line

The I/O-server group.erl echoed the skipped line.
Merge branch 'hb/stdlib/shell_improvement/OTP-10659'

* hb/stdlib/shell_improvement/OTP-10659:
  [stdlib] Let the shell turn off echo while skipping line
Merge branch 'sverk/erlang_pid-revert'

* sverk/erlang_pid-revert:
  erl_interface: Fix some warnings in test code
  erl_interface,ic: Remove node_org_enc from erlang_{pid,port,ref}
Fix close_active_handle() properly
Merge branch 'lukas/common_test/remove_deprecated_run_test/OTP-9052'

* lukas/common_test/remove_deprecated_run_test/OTP-9052:
  Remove the deprecated run_test start program

OTP-10881
Merge branch 'sal/ftp/OTP-10886'

* sal/ftp/OTP-10886:
  Changed to correct errorcode in testcase
  Handle correctly the "No files found or file unavailable" error code.
Merge branch 'sverk/win-64-pointer-fix'

* sverk/win-64-pointer-fix:
  erts: Correct term type for printf %T
  erts: Correct internal printf integer type for win64
  erts: Correct some printf type formatting
  erts: Fix type bug in get_proc_affinity for windows

OTP-10887

Forgot this ticket for sverk/erlang_pid-revert:
OTP-10885
Adapt the Unicode chapter of STDLIB users guide to R16

Also extended it with more examples, summaries and other
stuff.
Correct text according to document reviews
Update .gitignore
Merge branch 'pan/unicode_users_guide/r16b'

* pan/unicode_users_guide/r16b:
  Update .gitignore
  Correct text according to document reviews
  Adapt the Unicode chapter of STDLIB users guide to R16

OTP-10302
tests: Remove old_httpc_SUITE, no longer used
Merge branch 'rickard/r16b/port-leak/OTP-10809'

* rickard/r16b/port-leak/OTP-10809:
  Fix port structure leak when hitting system limit