Re-factor network/site-users.php to use a list table

[PeteMall]

Adapt wp-admin/includes/class-wp-users-list-table.php for the Network Admin Site Users page.

work in progress

Updated cap checks.

(In [16560]) Adapt user-list-table for network admin site-users. See #15558

TODO:

• Screen Option - Users per page
• Handle redirection from user-edit.php
• Contextual help

Patches welcome ;)

(In [16570]) Add screen option in site-users. Props duck_, see #15558

(In [16573]) Hide posts column for site-users. Props ocean90, see #15558

Update and error messages.

Latest patch looks like a good step in the right direction

(In [16582]) Update and error messages for site-users. See #15558.

(In [16584]) Exit after wp_redirect(). See #15558

Create new user form.

(In [16586]) Create new user form for site-users. See #15558

(In [16607]) Make the list of actions that can be performed on a site in the User List in Network admin filterable.
Add classes for all core site status types to the view url.
Move the CSS to a css file rather than including it inline.
See #15558

Suggestion:

Instead of changing

tr.site-mature {

to

tr.site-mature, a.site-mature {

Why don't we change it to

.site-mature {

Unless there are other instances of .site-mature within different tags which require different styling then this would be the best way to go. Same for .site-deleted and .site-spammed and .site-archived

Replying to JohnONolan:

Suggestion:

Instead of changing

tr.site-mature {

to

tr.site-mature, a.site-mature {

Why don't we change it to

.site-mature {

Unless there are other instances of .site-mature within different tags which require different styling then this would be the best way to go. Same for .site-deleted and .site-spammed and .site-archived

Probably true - I was too lazy to search for other instances at the time I was doing this. :-(

User rows are not currently highlighted when a user is set as spam. Changing line 146 to this will fix it:

$alt .= " $col"; 

@westi - want me to patch? :)

Replying to JohnONolan:

@westi - want me to patch? :)

Please

(In [16879]) Fix row hilighting when user is spam. See #15558 props beaulebens.

Amends CSS to be global classes not associated with specific tags.

(In [16902]) Make classes global. Props JohnONolan. fixes #15558