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.
Add Fd usage in rb logging

rb was only accepting physical filenames as log file.
This patch allow rb to accept now any io_device, valid registered name,
except standard_error which is replaced by standard_io.
Creation of two new exported functions : rb:log_list/0-1
that print in log file if existing, otherwise on standard_io.
Add new functions documentation and tests in rb_SUITE.
Forbid returning a match context in beam_validator

If a match context is returned from a function without being converted
back to a plain old binary, the whole VM will crash.
Added primary bootstrap
kernel: sasl: fixed rb.xml docs
make edlin understand a few important control keys

Hi Fredrik,

> I've gotten some feedback from your review,
> You need to add documentation under Erts-> "User's Guide" -> "tty - A
> command line interface"
>
> You need to add testcase in interactive_shell_SUITE a simplified
> example of how this testcase could look like;
> ctrl_w_and_ctrl_u(_Conf) ->
>     rtnode([{putline,""}, {putline, "2."}, {getline, "2"},
> {putline,"xxx yy"++[$\^w]++"."}, {getline,"xxx"}, {putline,"xxx
> yy"++[$\^u]++"z."}, {getline,"z"}],[]).

Please find an updated version of the patch attached to this e-mail. I
hope that you still accept it via e-mail because the former patch was
sent the same way ;-).

I have extended the documentation to list the new key combinations and
added tests to make sure they work.

Kind regards,

--
Dr. Stefan Zegenhagen

arcutronix GmbH
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Germany

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>From ce4b827c78d18f39bb1146fd2959ffd7ae2b4bb6 Mon Sep 17 00:00:00 2001
From: Stefan Zegenhagen <stefan.zegenhagen@arcutronix.com>
Date: Mon, 6 May 2013 14:39:07 +0200
Subject: [PATCH] [EDLIN] support a few more control keys

Add support for the following control keys that many users have become
accustomed to:
 - <CTRL>+W         : backward kill word
 - <CTRL>+U         : backward kill line
 - <HOME>           : goto start of line
 - <END>            : goto end of line
 - <CTRL>+<LEFT>    : backward word
 - <CTRL>+<RIGHT>   : forward word

It seems that the <CTRL>+<LEFT|RIGHT> control key sequences are
different between terminal emulators, therefore a few possible
combinations were added (similar to how libreadline is configured).

Documentation and tests are extended to reflect the new functionality.
Export the edge/0 type from the digraph module
PER, UPER: Fix encoding/decoding of open types greater than 16K
Merge branch 'bjorn/asn1/fragmented-open-types/OTP-11223' into maint-r15

* bjorn/asn1/fragmented-open-types/OTP-11223:
  PER, UPER: Fix encoding/decoding of open types greater than 16K
Prepare release
erts: fixed documentation regarding tty and arrow keys
Added primary bootstrap
erts: Fix bug in translating ev macros to functions
[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 'maint-r15' into maint

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
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
Correct the specifications of io_lib:fread/2,3

Thanks to Chris King and Kostis Sagonas for pinpointing the bug.
Merge branch 'hb/stdlib/correct_fread_spec/OTP-11261' into maint

* hb/stdlib/correct_fread_spec/OTP-11261:
  Correct the specifications of io_lib:fread/2,3