Optimizing: Thinner catalog index and metadata

[jukka]

There are lots of unused plone cruft or deprecated lemill indexes in catalog, slowing it down. In following list those marked with X are the ones that I think we're not using, or shouldn't be using. Remove them from catalog index and metadata, do it in ConfigurationMethods? in such way that it won't fail if they are not present. (Some of them are probably not present in fresh lemill instance anyway.)

CreationDate
Creator
X Date 
X Description
X EffectiveDate
X ExpirationDate
Language
ModificationDate
X Subject
Title
Type
UID
X created
X effective
X end
X exclude_from_nav
X expires
X getActivity_score
X getAddress
X getAge_group
getBodyText
X getCategory
X getDescription
X getEmail
X getEndUserRole
getFull_name
X getFullname
getGroupMembers
getGroupsShared
getHasCoverImage
X getIcon
? getId <-- we have 'id' too 
getInterests
getIs_discussion
getLanguage_skills
getLastname
getLatestEdit
X getLearningContext
X getLearningResourceType
X getLocation
getLocation_area
getLocation_country
getNicename
X getNickname
X getObjSize
? getObjPositionInParent
getOnlyText
getPiece_type
getRawGroupEditing
X getRemoteUrl
getScore
X getShortDescription
getSkills
getSortable_nicename
getSubject_area
getTags
getTarget_group
X getUsed_content
id
X in_reply_to
X is_default_page
X is_folderish
listCreators
X location
modified 
portal_type
review_state
sortable_title
X start