Missing looping index added. Without index empty rows returned for csv column headers.
Merge pull request #3130 from dionysiosarvanitis/fix/pdo_result__list_fields

Missing looping index added.
Fix #3131
Merge branch 'develop' of github.com:EllisLab/CodeIgniter into develop
Return 403 instead of 500 if no CSRF token given

Not supplying a CSRF token shouldn't return a 500 response because it isn't a server error. The response status code should definitely be in the 400's, because it's the client's fault. And it should be a 403 because the client is forbidden from making that request without the appropriate credential (the CSRF token), though the request may be otherwise valid.

http://en.wikipedia.org/wiki/List_of_HTTP_status_codes
Fix a few typos and add a backport (compat) for hex2bin()
Add a backport (compat) for quoted_printable_encode()
Fix potential bugs in password_hash(), CI_Encryption

strlen(), substr() are not byte-safe when mbstring.func_overload is enabled
Continuing from previous commit ... use CI_Encryption::substr()
Add setting ['composer_autoload']

Supersedes PR #3132
[ci skip] Add a note about CI_Driver (issue #3140)
Fix CI_Encryption::substr() usage of mb_substr()

The whole point was to use 8bit encoding
Fix CI_Encryption::substr() for PHP 5.3

Nothing critical, just an edge case that isn't currently used
Add changelog entry for CSRF status code; remove line at EOF
Merge pull request #3134 from kdazzle/patch-1

Return 403 instead of 500 if no CSRF token given
anchor popup attribute missing

Please add the menubar attribute to anchor popup
Fix #3161
Fix #3160
Update url_helper.php
Support for menubar attribute to the :func:`anchor_popup()` 

Now the menubar can be set to yes with anchor_popup() by adding new attribute array element 'menubar' => 'yes' 
The list of all available attribute for anchor_popup() function will be 
$atts = array('width' => '800', 'height' => '600', 'scrollbars' => 'yes', 'menubar' => 'no', 'status' => 'yes', 'resizable' => 'yes', 'screenx' => '0', 'screeny' => '0');