[Issue #92] Fixed the name of the inputs to avoid changing controllers
[Issue #92] fixed controller to work wit new specs of the current model
[Issue #92] Added failing tests. TDD for the win[D
[Issue #92] Fixed category tests
[Issue #92] Added woriking code for method that passes tests
[Issue #92] Fixed other tests that use category model
[Issue #92] Fixed code conventions
[Issue #92] Added tests for string helper
[Issue #92] Fixed encoding issues on test
[Issue #92] refactored code to work with code conventions