Presets are stored in the DB and may contain config for plugins which
have since been deprecated. This just makes sure these are skipped when
trying to apply the preset.
In order to guarantee all the plugin type names are displayed properly,
the 'pluginname' string call has been replaced to the proper
$plugininfo->displayname setting. That way, the plugin names will
be always displayed using the proper string translation.
This commit moves the presets subsystem to a location within the admin
folder, which is more appropriate given its purpose and reduces
developer frustration with tab completion of the admin directory.
Jake Dallimore