bug fix and grammar mod

...nfiguration/dsl/ide/contentassist/antlr/ConfigParser.java

...ion/dsl/ide/contentassist/antlr/internal/InternalConfig.g

...sl/ide/contentassist/antlr/internal/InternalConfig.tokens

...ide/contentassist/antlr/internal/InternalConfigLexer.java

...de/contentassist/antlr/internal/InternalConfigParser.java

.../teetime/configuration/dsl/klighd/OpenDiagramHandler.java

.../dsl/ui/contentassist/AbstractConfigProposalProvider.java

...ion/dsl/ui/contentassist/.ConfigProposalProvider.xtendbin

teetime.configuration.dsl/model/generated/Config.ecore

teetime.configuration.dsl/model/generated/Config.genmodel

...eetime/configuration/dsl/AbstractConfigRuntimeModule.java

...ion.dsl/src-gen/teetime/configuration/dsl/Config.xtextbin

...c-gen/teetime/configuration/dsl/config/ConfigPackage.java

...n.dsl/src-gen/teetime/configuration/dsl/config/Stage.java

...time/configuration/dsl/config/impl/ConfigPackageImpl.java

...-gen/teetime/configuration/dsl/config/impl/StageImpl.java

.../configuration/dsl/parser/antlr/internal/InternalConfig.g

...iguration/dsl/parser/antlr/internal/InternalConfig.tokens

...ration/dsl/parser/antlr/internal/InternalConfigLexer.java

...ation/dsl/parser/antlr/internal/InternalConfigParser.java