[Dovecot] 1.0-test75 and roadmap for v1.0

[Timo Sirainen]

http://dovecot.org/test/

Keywords are finally stored in maildir filenames and listed in 
"dovecot-keywords" file. It should be possible to just rename 0.99.x's 
.customflags file to dovecot-keywords (but it can't be renamed back 
after modification).

Also fixed another uid/sequence mixup bug with setting keywords in 
general (in mbox too).

Fixed SHA1 checksum generation with big-endian machines (used only in 
passwords).

I think I'll forget about the master/config rewrite for a while and 
leave it for Dovecot v2.0. That would mean the next release will be 
called 1.0-alpha1. After that there should be only bugfixes and some 
smaller features and optimizations left.

I looked through my TODO and found the following missing features / 
optimizations that pretty much have to be done before v1.0. Anything 
important missing?

  - keywords:
     - add some limits to how many there can be
     - send FLAGS/PERMANENTFLAGS untagged replies when they change
       (required by IMAP RFC)
     - remove unused keywords from keyword list? (only when adding new 
ones)

  - mail cache file
      - cache _all_ headers that are marked to be cached when headers are
        being parsed, not just the ones client is requesting at that 
time.
      - compression should drop fields with last_used <
        (latest_mail_index_date - month)
      - when parsing mbox or saving message, parse the mail through 
index-mail
        so things gets saved into cache immediately

  - mbox
      - when we're updating flags with lazy writing, we're still parsing 
the
        mbox, just not writing to it!
      - always add empty line after mail.
          - make the parser require it too? syncing should make sure 
there
	   always exists two LFs at end of file. raw-mbox-stream should
	   make sure the last message ends with LF even if it doesn't exist
            in the file
     - COPY doesn't work to same mailbox (lock assert crash)
     - keep mbox lock for two extra seconds after sync to make sure we
       notice changes made by other mbox writer software

  - maildir
     - hardlink copying doesn't update indexes (does it even work?)

  - deliver needs quota integration somehow so it returns out-of-quota
    failure as fatal instead of temporary

Probably after v1.0:
  - Full NFS support
  - Try to handle out-of-quota/disk space situations well
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