Gradebook: Some exceptions are hardcoded in English

See attached images

File BaseHibernateManager.java

• weight for category is greater than 1 or less than 0 in createCategory of BaseHibernateManager
• a combination of positive values for keepHighest and either drop_lowest or dropHighest occurred in createCategory of BaseHibernateManager
• org.sakaiproject.service.gradebook.shared.ConflictingCategoryNameException: You can not save multiple category in a gradebook with the same name