Version - reseted to 2.0.0; README - prefixed changes for this feature with 2.x.x
travis - added ruby-head, added Rails version master
gemspec - maximum rails version lt 5.0
Refactored changes made for this feature. Now overwriting the reset_session method. Refactored some tests and added some new.
Modified database.yml from dummy rails app to use in memory sqlite3 database