[BUGFIX] Avoid warning for invalid filters

When an invalid filter is provided, throw the appropriate error and
avoid additional warnings.

[BUGFIX] Allow OPTIONS requests with access token

Add the OPTIONS HTTP method to the allowed methods

[BUGFIX] Avoid INNER JOIN for LEFT JOIN filters

If the first field condition (alphabetically) is a LEFT JOIN filter,
make sure that subsequent fields do not join to it with an INNER
JOIN.

[SECURITY] Avoid remote execution

Avoid an unexpected function to be run by using a non existent HTTP
verb.

[BUGFIX] Remove cache fragments during shutdown

When an entity is updated or deleted we need to clear caches and
remove the cache fragments. The problem is that depending on the
site configuration, that operation may be affected for a rolling
back transaction. Defer the clearing to the shutdown instead.

Bug fixes

Bug fixes, New features

First table release for 2.x

[FEATURE] Record last-access time for users

When a user's account is loaded, the user table should be updated
to indicate that they have made an authenticated request. This
mirrors the logic in _drupal_session_write().

[BUGFIX] Fix the resource plugin reference

So the cache placeholder population can load the plugin.