optimize ModelJoin creation and remove small errors

lib/modeljoin.jar

...project/model_management/util/query/ModelJoinCreator.java

src/main/scala/org/rosi_project/example/ExampleAml.scala

.../org/rosi_project/model_management/sum/query/AQuery.scala

...oject/model_management/sum/query/ModelJoinContainer.scala

...a/org/rosi_project/model_management/sum/query/Query.scala

...osi_project/model_management/sum/query/QueryFactory.scala

...g/rosi_project/model_management/sum/query/RsumQuery.scala

src/main/scala/query/AMLLanguageQuery.scala

src/main/scala/query/EclipseLibraryQuery.scala

src/main/scala/query/IMDBdatabaseQuery.scala

src/main/scala/query/LibraryQuery.scala