5.1.1 Backported issues

[fmbenhassine]

• Incorrect error message in JobOperatorFactoryBean #4528
• Incorrect Type of getter in Documentation for JobParameters GetDouble #4526
• UI Aligment Issue - Spring Batch Version Number in Docs #4534
• Check dirty flag of step execution context before update in inner loop #4503
• DefaultJobParametersConverter throws java.lang.ArrayIndexOutOfBoundsException if input is empty string #4505
• JobRepository.deleteJobInstance() Fails with Foreign Key Constraint Violation if Job Executions have Step Executions #4382
• Incorrect deprecation in MongoPagingItemReader #4552
• Incorrect step configuration when setting the taskExecutor before faultTolerant() #4438

[fmbenhassine]

Closing this as v5.1.1 has been released: https://github.com/spring-projects/spring-batch/releases/tag/v5.1.1