Improve OmniAuth version check to allow anything from 1.0 forward by carlosantoniodasilva · Pull Request #5327 · heartcombo/devise

This should enable people to try OmniAuth 2 currently in pre-release. Closes #5326, And I believe also closes #5236. (for now at least) TO-DO Update Wiki: https://github.com/heartcombo/devise/wik...