4.13:
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Allow to select specific folder.

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- Test on Windows/MacOsX

- Search info about how is stored config on AppleMail/Outlook etc.

- Look at more mailer.

- Import data from *rss* when akregator2 will ported, same for KNode. (not sure that it will port)

- Add support for Lightning for mozilla (calendar mozilla)

- Import note from TomBoy ?

NEED TO FIX:
- Import addressbook from Thunderbird.
- Fix import filters.