SpellChecker was removed from Whoosh

[rafacouto]

I am getting this error during the installation process (in an updated Debian Wheezy from scratch). Tested from master branch and v2.1.0 tag.

File "/home/caligari/agora/haystack/backends/whoosh_backend.py", line 44, in <module>
    from whoosh.spelling import SpellChecker
ImportError: cannot import name SpellChecker

It seems a problem of versioning between Whoosh and Haystack: https://github.com/toastdriven/django-haystack/issues/819

[toastdriven]

This is fixed as of Haystack v2.1.0, which adds support for Whoosh 2.5.0+.

[edulix]

Thanks @toastdriven we can then require haystack v2.1.x and use whoosh 2.5.0+ I guess.

[patcon]

Working a creating a common vagrant dev environment that will hopefully help with this stuff :)
https://github.com/patcon/agora-ciudadana-vagrant

Not working yet though. Still trying to wrangle chef's deploy resource into working with how this project likes to be deployed.