we just need flat lists for now
##Folder List
* all accounts
* all folders from an account
###Properties:
* "folder/account name"
* "icon-name"
##MailList
* unread mail for all accounts
* imporant mail from all account
* all mail from 1 Folder (e.g. inbox)
* all mail that matches a given search string
* thread leader that contains unread mail for all accounts
* thread leader that contains imporant mail from all account
* all thread leader from 1 Folder (e.g. inbox)
###Properties:
* "sender name"
* "sender email"
* "subject"
* "date"
* "is unread"
* "is important"
thread leader results should also have
* number of mails in theard property
* list of names that participated in the thread
##MailView
* all properties of a single mail
* all properties of all mail that belong to a thread
###Properties
* all there is