Implementing sitemesh support for issue #17
Implementing sitemesh support for issue #17
Implementing sitemesh support for issue #17
Merge pull request #24 from rsaraiva/master

Implementing a simple sitemesh layout for issue #17
Configuration to use @Valid and return the expected errors map. Simplification of the user of  from spring using a custom error implementation  for the project, exclusion of the ValidationUtil will be not needed anymore, refactoring of the SectorController and CostCenterController  to use the new implementation.