Fix httpd config option 'erl_script_nocache'

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

Attention: Before, the option 'script_nocache' also changed the
behavior for mod_esi, now it only affects mod_cgi.
[inets, ssl]: make log_alert configurable as option in ssl, SSLLogLevel added as option to inets conf file
inets: added simple testcase for option erl_script_nocache
Merge branch 'fredrik/inets/ssl/fixup_log_alert_option/OTP-11259' into maint-r15

* fredrik/inets/ssl/fixup_log_alert_option/OTP-11259:
  [inets, ssl]: make log_alert configurable as option in ssl, SSLLogLevel added as option to inets conf file
Update release notes
Merge branch 'jw/fix-httpd-erl-script-nocache/OTP-11260' into maint

* jw/fix-httpd-erl-script-nocache/OTP-11260:
  inets: added simple testcase for option erl_script_nocache
  Fix httpd config option 'erl_script_nocache'
Merge branch 'maint'
Merge branch 'maint-r15' into maint-r16

Note that this is a fake merge. The bug fix changes files that
are no longer present in maint, and the bug will need to be fixed
in a different way.

* maint-r15:
  Prepare release
  PER, UPER: Fix encoding/decoding of open types greater than 16K
erts: Fix print out of acul option in crash dump
Merge branch 'lukas/erts/efile_undef_behaviour/OTP-11246' into maint

* lukas/erts/efile_undef_behaviour/OTP-11246:
  erts: Fix bug in translating ev macros to functions
Merge branch 'lukas/erts/crash_dump_acul/OTP-11264' into maint

* lukas/erts/crash_dump_acul/OTP-11264:
  erts: Fix print out of acul option in crash dump
Merge branch 'maint'

* maint:
  erts: Fix print out of acul option in crash dump
Merge branch 'maint-r15' into maint-r16

Conflicts:
	lib/inets/doc/src/notes.xml
	lib/inets/src/http_lib/http_transport.erl
	lib/inets/src/inets_app/inets.appup.src
	lib/inets/vsn.mk
	lib/ssl/doc/src/notes.xml
	lib/ssl/src/ssl.appup.src
	lib/ssl/src/ssl.erl
	lib/ssl/src/ssl_internal.hrl
	lib/ssl/src/tls_connection.erl
	lib/ssl/vsn.mk
Merge branch 'maint-r16' into maint
Merge branch 'maint'
Add debug functionality to retrieve async key
Initialize errno properly in win32 efile_may_openfile
Create better distribution of files over async threads

The actual port id is used to create a key from the
pointer value which is the ErlDrvPort. To do this
a new driver api function driver_async_port_key is
added and the driver API minor version is updated.

The documentation is updated and the faulty description of
how to spread ports over async threads is updated to
use the new API.

Testcase also added.
Merge branch 'pan/bad_async_thread_distribution/OTP-11243' into maint

* pan/bad_async_thread_distribution/OTP-11243:
  Create better distribution of files over async threads
  Initialize errno properly in win32 efile_may_openfile
  Add debug functionality to retrieve async key

OTP-11243
OTP-11265
Merge branch 'maint'