Add Slack notifications to Travis CI config. fixes #30755.


git-svn-id: https://develop.svn.wordpress.org/trunk@30963 602fd350-edb4-49c9-b593-d223f7449a82
Update bundled theme POT files in trunk.


git-svn-id: https://develop.svn.wordpress.org/trunk@30965 602fd350-edb4-49c9-b593-d223f7449a82
Bundled Themes: bump version numbers to coordinate with 4.1 release.

git-svn-id: https://develop.svn.wordpress.org/trunk@30967 602fd350-edb4-49c9-b593-d223f7449a82
Update theme POT files in trunk.


git-svn-id: https://develop.svn.wordpress.org/trunk@30969 602fd350-edb4-49c9-b593-d223f7449a82
About page: CDN images.


git-svn-id: https://develop.svn.wordpress.org/trunk@30971 602fd350-edb4-49c9-b593-d223f7449a82
Use correct notation for global functions in `@covers` test annotations.

Props sgrant.
Fixes #30769.

git-svn-id: https://develop.svn.wordpress.org/trunk@30976 602fd350-edb4-49c9-b593-d223f7449a82
Editor: when switching editor-expand off for the first time use the default editor height. Props avryl, fixes #30760 for trunk.

git-svn-id: https://develop.svn.wordpress.org/trunk@30977 602fd350-edb4-49c9-b593-d223f7449a82
Improve some `wp-admin/includes/class-wp-filesystem-*.php` docs for `@param`.

See #30799.


git-svn-id: https://develop.svn.wordpress.org/trunk@30978 602fd350-edb4-49c9-b593-d223f7449a82
Improve some docs for `@param`. Remove an unneeded `$wpdb` global import.

See #30799.


git-svn-id: https://develop.svn.wordpress.org/trunk@30979 602fd350-edb4-49c9-b593-d223f7449a82
In `wp_import_handle_upload()`:

`$file` was essentially getting declared/overwritten 3 times. In lieu of this, return an array containing the error immediately instead of doing a short-circuit array key assignment on error. Rename the local variable to `$upload` and use its properties instead of creating 3 new local vars, one of which stomped the array.

See #30799.


git-svn-id: https://develop.svn.wordpress.org/trunk@30980 602fd350-edb4-49c9-b593-d223f7449a82
In `image_size_input_fields()`:

* Declare `$out` as an empty array - this is not a strict PHP requirement, but is a good practice before loops
* Most of this function was tabbed twice, instead of once

See #30799.


git-svn-id: https://develop.svn.wordpress.org/trunk@30981 602fd350-edb4-49c9-b593-d223f7449a82
For clarity, initialize some arrays that previously were only assigned via short circuit in loops.

See #30799.


git-svn-id: https://develop.svn.wordpress.org/trunk@30982 602fd350-edb4-49c9-b593-d223f7449a82
Correct the `@param` docs for arguments that are truthy/falsey.

See #30799.


git-svn-id: https://develop.svn.wordpress.org/trunk@30983 602fd350-edb4-49c9-b593-d223f7449a82
Comment List Tables:

* Declare `$extra_items` property
* Since `->get_column_info()` overrides its parent's method, it doesn't need to set `_column_headers`, which is an undeclared property that is only used for caching the lookup after the first run in the parent class, which isn't called in the child class.
* `$_args` in `WP_List_Table` has to be `protected` for `WP_Post_Comments_List_Table` to legally access it. `$_args` is awkward as is and should probably be only available via a getter.

See #30799.


git-svn-id: https://develop.svn.wordpress.org/trunk@30984 602fd350-edb4-49c9-b593-d223f7449a82
Merge remote-tracking branch 'origin/master'

Conflicts:
	.travis.yml