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Merge pull request #37 from emanuelmm/master

It explains the repository used by Yougi and gives initial steps about forking the project.
Atualização de doc. pt_br com doc. en: Adicionado seção do liquibase.
Correções dos nomes na documentação: jug.ear para yougi.ear, banco de
dados de jug para ug e aplicação jug para yougi.
Fixed #38: Messages are now prepared to be sent by other business classes.
Fixed #8: Liquibase fully integrated into the application.
Merge branch 'master' of github.com:htmfilho/yougi
All CSS and JS files under resources folder will be compressed on deploy or run phases.
Issue #32: Final Class, Compare Objects With Equals, Avoid Throwing Raw Exception Types, Preserve Stack Trace, Avoid cycle between java packages, Hide Utility Class Constructor, Unnecessary Local Before Return.
Merge branch 'master' of github.com:htmfilho/yougi
Issue #40 Entity classes to support a event at the level of a conference.
Issue #40: Liquibase change logs.
Issue #32: Avoid cycle between java packages
Issue #40 Refactored the impacted classes after the changes in the event entity classes.
Fixed #41: Copyright notice changed.
Issue #40: Final changes in the entity classes to support events at the level of conferences.
Issue #32: Sonar violation fixes.
Fixed #39