replace deprecated finder and finder_options syntax
replace deprecated scope syntax and unify it
remove conditions on association deprecation warnings
access connection through class
remove deprecated scoped
make status message controller spec pass and deprecation free
make assets:precompile work
Make unprepared statements work again

See https://coderwall.com/p/45ombq
Remove attr_accessible from OpenGraphCache
replace deprecated usages for all
replace deprecated disable_with option