Add Front-end Unit Tests for some entities

Selenium tests for some of the controllers.
Add messages for Spanish language

Only some of the translations provided.
Modify menu with friendly layout
Set logging to INFO level for production
Add security entry title to the main menu
Fix pagination issue from show.tagx

show.tagx was allowing to show all registers without pagination.
Change date format to MM to add time
Exclude OneToMany fields from toString
Push-in populateEditForm and customize converters
Set hibernate.show_sql to false for production
Add itemLabel to field:select