TDQ-9492 "view keys" and "view index" function in overview anlaysis get error. and "Connections" view will not show
https://jira.talendforge.org/browse/TDQ-9492
don't show DI repository view when create database connection in DQ perspective
fix workitem: add log4j for tFTP component
https://jira.talendforge.org/browse/TDI-28555
Merge pull request #45 from xqliu-talend/maintenance/5.6

TDQ-9492 "view keys" and "view index" function in overview anlaysis get ...
TDI-30833: the order of elements is not correct with
tAdvancedFileOutputXML 
https://jira.talendforge.org/browse/TDI-30833
TDI-30836: Compile error for tFileInputXML when "SAX" mode is triggered
and log4j is activated
https://jira.talendforge.org/browse/TDI-30836
fix bug: TUJ regression on 5.6 on BugTDI29033_XXX
https://jira.talendforge.org/browse/TDI-30680
TDI-29473: Add log4j for tELTXXXInput,tELTXXXMap and tELTXXXOutput
https://jira.talendforge.org/browse/TDI-29473
Note:Optimize the log4j code of tELTXXX
Add required parameter to connection settings
TDQ-9496 add functions for header.
Merge branch 'maintenance/5.6'