WSDLValidator improved (#166), Bug fix for Restriction (#185)
Definitions updated: getElement() and getType() throw exceptions if ref is invalid.
WSDLValidator improved: Difference for invalid element and type references.
Merge remote-tracking branch 'upstream/master'
#168 Refactored AbstractParserContext so that it becomes responsible on how to cache imported Schema's. This will allow to implement different caching strategies.
Added source jar generation to the pom.
#168 Refactored AbstractParserContext to use the new ParserImportedSchemaCache for caching already parsed schema's. This allows to reuse parsed Schema's for different WSDLs in a multi-threaded environment.
#168 Fixed concurrency issues in the ParserImportedSchemaCache when shared by multiple WSDLParsers
Updated Git ignores
#188 Disabled failing test.
Introduced separate version numbers for the IXORBE stable branch
Merge branch 'ixorbe-stable' of github.com:ixorbe/soa-model into ixorbe-stable