Radar patient list is not working & Remove sysouts

1. change centre.id to  centre.unitcode.
2. make log message meaningful.
Merge branch 'develop' of https://github.com/lu-yang/patientview into develop

Conflicts:
	patientview-parent/patientview/src/main/java/org/patientview/batch/XmlImportReader.java
	patientview-parent/patientview/src/main/java/org/patientview/patientview/parser/XmlParserThread.java

Radar patient list is not working & Remove sysouts
1. change centre.id to centre.unitcode
2. make log message meaningful