describe users routings
describe items routings
describe tags routings
describe sessions routings
describe items helpers related routing
describe users path helper
make more meaningful items routings
fix templates to follow routings changes
update Gemfile
use scope for users routing
fix path helper name according to Rails conventions
fix templates to follow user routing changes
describe generating methods with tags
use scope to draw tag routings
fix generating path method name according to Rails convertion
Merge branch 'refactoring-routes'