TAPESTRY-2100: Validation and Error messages for Portuguese locale

Files:
modified: /tapestry/tapestry5/trunk/tapestry-core/src/main/java/org/apache/tapestry5/services/TapestryModule.java (try)
added: /tapestry/tapestry5/trunk/tapestry-core/src/main/resources/org/apache/tapestry5/internal/ValidationMessages_pt_PT.properties (try)
added: /tapestry/tapestry5/trunk/tapestry-core/src/main/resources/org/apache/tapestry5/corelib/components/Errors_pt_PT.properties (try)