4.3.7 Backported issues

[fmbenhassine]

• Unable to register an annotation-based StepExecutionListener in a fault-tolerant step #4137
• Unable to read XML data without spring-tx in the classpath #4132
• Add missing initialized flag set to FlowJob #4142
• Fix non-nullable columns in MySQL migration for Spring Batch 4.3 #4145
• Improve documentation of scoped beans definition #1502
• Incorrect reference to SimpleJdbcTemplate in reference documentation #4197

[fmbenhassine]

Closing this, v4.3.7 has been released: https://github.com/spring-projects/spring-batch/releases/tag/4.3.7