Reusable feature for making CMS buttons that respond to the current
contextual state with an appearance change.
Provides capability to specify initial state, alternate icon and
alternate text via data attributes or options (PHP or JS), and to hook
up into events triggered when the state is alternating.
This is used by the follow-up cms action buttons cleanup work.
Avoid PHPUnit throwing "test didn't run any assertions"
notices in PHP. If nothing else, it keeps test output
looking less broken by default, making it more likely
that actual errors do get noticed.
This became a problem with fdcd7a2e where $custom_database_fields
were cached, but never reset. It lead to extensions not applying
correctly in SapphireTest->setUpOnce().
Previously changes to $requiredExtensions and $illegalExtensions
didn't cause a reset unless there was also other schema-altering
settings like $extensionsToRemove or $extraDataObjects
Makes the editor API more flexible by triggering generic JS events that
can be used from entwine. This makes it easier to add event handlers to
the editor and cleans up the initialisation call from unrelated code.
The patching code also forwards editor changes to the textarea field,
which in perspective will allow the changetracker to react to changes in
this field as they happen.
The original intention of this method was to be a rewrite
check by the installer, but it doesn't belong in
DatabaseAdmin, nor is it used by the installer anymore,
since the rewrite test is done by the installer directly.
Settings.url no longer contains the URL, as a result navigating around
tabs in IE (browsers that do not support History API) becomes broken.
For example when the admin is opened on "Pages" section it is impossible to
navigate to specific page, or if the admin is opened on a tab, it's not
possible to navigate to another tab.
