+OtherAccountProfiles: Hook to add account profiles to a user account profile block
+- $profile: the Profile being shown
+- &$others: Modifiable array of profile info arrays. Each one has the following fields:
+ href: link to the profile
+ text: text for the profile
+ image: mini image for the profile
+
+CreateFileImageThumbnailSource: Hook to create image thumbnail source from a File
+- $file: 'File' object to source the image from
+- &$imgPath: Path to image file which can be used as source for our thumbnail algorithm.
+- $media: MIME media type ('image', 'video', 'audio' etc.)
+
+StartShowAttachmentRepresentation: Attachment representation, full file (or in rare cases thumbnails/previews).
+- $out: HTMLOutputter class to use for outputting HTML.
+- $file: 'File' object which we're going to show representation for.
+
+EndShowAttachmentRepresentation: Executed after Attachment representation, despite perhaps being unsupported media.
+- $out: HTMLOutputter class to use for outputting HTML.
+- $file: 'File' object which we're going to show representation for.
+
+ShowUnsupportedAttachmentRepresentation: Attachment representation, full file (or in rare cases thumbnails/previews).
+- $out: HTMLOutputter class to use for outputting HTML.
+- $file: 'File' object which we're going to show representation for.