update versions Ruby and Rails
cleaning of files mongodb
continuation -  cleaning of files mongodb
adding new database PostgreSQL
add file db/schema.rb
modified .gitignore
add database.yml.example
add file production.rb in config
cleaning residues mongo in models/user.rb
add settings in config file - application.rb and development.rb
delete empty line - production.rb
new database.yml.example and repaired user.rb
add new columns to user table
solution to the problem with logging
delete file production.rb and transfer config to staging.rb
delete production.rb
Merge pull request #7 from cintrzyk/RoR

update RoR&Ruby; postgresql instead of mongodb