Improving JURASSIC compiler maintainability

...in/java/tmltranslator/mutations/AddAttributeMutation.java

...va/tmltranslator/mutations/AddDataConnectionMutation.java

...a/tmltranslator/mutations/AddEventConnectionMutation.java

...tmltranslator/mutations/AddRequestConnectionMutation.java

src/main/java/tmltranslator/mutations/AddTaskMutation.java

src/main/java/tmltranslator/mutations/AttributeMutation.java

src/main/java/tmltranslator/mutations/CloneTaskMutation.java

...main/java/tmltranslator/mutations/ConnectionMutation.java

.../java/tmltranslator/mutations/DataConnectionMutation.java

...main/java/tmltranslator/mutations/DiplodocusMutation.java

...ava/tmltranslator/mutations/DiplodocusMutationParser.java

...java/tmltranslator/mutations/EventConnectionMutation.java

...java/tmltranslator/mutations/RemoveAttributeMutation.java

...tmltranslator/mutations/RemoveDataConnectionMutation.java

...mltranslator/mutations/RemoveEventConnectionMutation.java

...translator/mutations/RemoveRequestConnectionMutation.java

...main/java/tmltranslator/mutations/RemoveTaskMutation.java

...va/tmltranslator/mutations/RequestConnectionMutation.java

src/main/java/tmltranslator/mutations/TaskMutation.java