Merge branch '3.1-stable' into develop

Conflicts resolved:
	system/database/drivers/sqlite/sqlite_driver.php
	system/database/drivers/sqlite/sqlite_forge.php
	system/database/drivers/sqlite/sqlite_result.php
	system/database/drivers/sqlite/sqlite_utility.php
	system/helpers/captcha_helper.php
	system/helpers/email_helper.php
	system/helpers/inflector_helper.php
	system/helpers/smiley_helper.php
	system/language/english/form_validation_lang.php
	system/libraries/Cart.php
	system/libraries/Form_validation.php
	system/libraries/Javascript.php
	system/libraries/Javascript/Jquery.php
	system/libraries/Session/SessionHandlerInterface.php
	tests/codeigniter/helpers/inflector_helper_test.php
	user_guide_src/source/helpers/inflector_helper.rst

1 files changed, 0 insertions, 11 deletions

diff --git a/user_guide_src/source/installation/upgrade_320.rst b/user_guide_src/source/installation/upgrade_320.rst
index a9dc274c7..3eadd8caf 100644
--- a/user_guide_src/source/installation/upgrade_320.rst
+++ b/user_guide_src/source/installation/upgrade_320.rst
@@ -257,14 +257,3 @@ so that if you're using the :doc:`Web Page Caching <../general/caching>`
 feature, you'll be left with some old, garbage cache files.
 
 That shouldn't be a problem, but you may want to clear them.
-
-Step 13: Check for calls to is_countable()
-==========================================
-
-
-PHP 7.3 introduces a native `is_countable() <https://secure.php.net/is_countable>`_
-function, which creates a name collision with the ``is_countable()`` function
-we've had in our :doc:`Inflector Helpers <../helpers/inflector_helper>`.
-
-If you've been using the helper function in question, you should now rename
-the calls to it to :php:func:`word_is_countable()`.