cocorresp version 0.2-2 released

I packaged up a minor release of cocorresp to fix a couple of issues arising from the recent changes in vegan's 2.2-0 release. The only changes in the release are:

• envfit.coca: fixed to work with new vegan permutation interface in envfit.default. Reported & fixed by Jari Oksanen
• NAMESPACE: import factorfit and vectorfit as we use these directly. Reported & fixed by Jari Oksanen