Function: Check if user already flagged a post.
Function: Flag button html.
Function: Delete multiple posts flags.
Function: Update total flagged question and answer count.
Function: Return total flagged post count.
Function: Check post for spam, if spam then hold it for moderation.
Function: Upload and create an attachment. Set post_status as _ap_temp_media, later it will be removed using cron if no post parent is set.
Function: Initialize AnsPress uploader settings.
Function: Return allowed mime types.
Function: Upload form.
