El DSL factors were not optional. Now, numbers can be written without factor again.

...ntassist/antlr/internal/InternalDataDescriptionLanguage.g

...antlr/internal/InternalDataDescriptionLanguageParser.java

....evoal.languages.model.ddl.dsl.ui/templates/templates.xml

.../languages/model/ddl/dsl/DataDescriptionLanguage.xtextbin

...l/parser/antlr/internal/InternalDataDescriptionLanguage.g

...antlr/internal/InternalDataDescriptionLanguageParser.java

...dl/dsl/services/DataDescriptionLanguageGrammarAccess.java

...contentassist/antlr/internal/InternalDefinitionLanguage.g

...sist/antlr/internal/InternalDefinitionLanguageParser.java

.../evoal/languages/model/dl/dsl/DefinitionLanguage.xtextbin

...dl/dsl/parser/antlr/internal/InternalDefinitionLanguage.g

...rser/antlr/internal/InternalDefinitionLanguageParser.java

...odel/dl/dsl/services/DefinitionLanguageGrammarAccess.java

...st/antlr/internal/InternalEvolutionaryAlgorithmLanguage.g

...internal/InternalEvolutionaryAlgorithmLanguageParser.java

...ages/model/eal/dsl/EvolutionaryAlgorithmLanguage.xtextbin

...er/antlr/internal/InternalEvolutionaryAlgorithmLanguage.g

...internal/InternalEvolutionaryAlgorithmLanguageParser.java

.../services/EvolutionaryAlgorithmLanguageGrammarAccess.java

...contentassist/antlr/internal/InternalExpressionLanguage.g