add spell checker on Windows

[Vaclav Slavik]

OS X and Linux versions support spellchecker, Poedit really should support it on Windows too.

This is complicated by the fact that there's no native support for this in native text control (there's some in Windows.Forms only, I think), so it has to be implemented from scratch, unlike on other platforms.

And there are no native dictionaries either. Best bets are

• Use  Enchant >= 1.4 -- it uses MySpell on Windows and is capable of using OpenOffice.org dictionaries that the user already has.

• Use MS Word COM control -- many people have this installed, it has very good checkers for many languages, includes grammar checker. It shouldn't be the only supported backend, though, because it's not an open solution.

[Vaclav Slavik]

Interesting Open Source grammar checker:  http://www.languagetool.org

[Kein]

Hey! I vote for this one!
Would be awesome!

You can use Aspell/Hunspell? libs btw. Opera uses those and it works fine (stable).