Update examples/parties/model.js

Generalized contactEmail().
Works for services that support email eg. not Twitter
Update packages/accounts-facebook/facebook_server.js

added expiresAt
missing refreshToken - not sure if its an issue since this seems to be handled gracefull by fb
Revert "Update packages/accounts-facebook/facebook_server.js"

This reverts commit c67f5499ce584d8606ccaa15a4922f119fac5e8f.
Revert "Update examples/parties/model.js"

This reverts commit e1f2aaed91d33cb519aa8a2c1ad51f7b96c86c77.
Merge branch 'master' of https://github.com/meteor/meteor
Merge branch 'devel' of https://github.com/meteor/meteor into devel