Fix httpd config option 'keep_alive_timeout'

The documentation states that the value is in seconds, which was true
when using the Apache like configuration file, but not true when using
the proplist style configuration.
Fix httpd config option 'script_timeout'

This fixes the usage of the httpd configuration option 'script_timeout',
which got ignored before.

The documentation states that the value is in seconds, which was true
when using the Apache like configuration file, but not true when using
the proplist style configuration.
Add misc documentation
Merge branch 'peppe/common_test/misc_r16b02_docs' into maint

* peppe/common_test/misc_r16b02_docs:
  Add misc documentation

OTP-11272
OTP-11263
OTP-11244
OTP-11238
OTP-11176
Make builtin hook respond to init:stop
Fix syslog defines

config.h defines HAVE_SYSLOG_H whereas the sources are looking for
NO_SYSLOG to be undefined. As the logic of "if feature is available"
makes more sense than "if feature is not unavailable", I opted for the
config.h define.
Define LOG_ERR for systems without syslog.h
Merge branch 'peppe/common_test/init_stop_problem' into maint

* peppe/common_test/init_stop_problem:
  Make builtin hook respond to init:stop

OTP-11175
crypto: Add ticket for 5d8a13bb6a180e0a

OTP-11320
Correct documentation of predefined types

The documentation of predefined types has been corrected

Thanks to Kostis Sagonas.
Merge branch 'hb/erts/refman_corrections/OTP-11321' into maint

* hb/erts/refman_corrections/OTP-11321:
  Correct documentation of predefined types
Remove ^L characters hidden randomly in the code. Not those used in text files as delimiters.

While working on a tool that processes Erlang code and testing it against this repo,
I found out about those little sneaky 0xff. I thought it may be of help to other
people build such tools to remove non-conforming-to-standard characters.
Update appup for diameter-1.4.3 in R16B02
megaco: Update appup file
vsn -> 1.4.3
orber: Remove testing of old ssl
Merge branch 'egil/fix-megaco-appup' into maint

* egil/fix-megaco-appup:
  megaco: Update appup file
Merge branch 'anders/diameter/R16B02_release/OTP-11322' into maint

* anders/diameter/R16B02_release/OTP-11322:
  vsn -> 1.4.3
  Update appup for diameter-1.4.3 in R16B02
Update primary bootstrap
inets: httpc improve pipelining