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
TDI-30754: tFileInputExcel/tFileOutputExcel contains buggy dependencies
in case VERSION_2007
https://jira.talendforge.org/browse/TDI-30754
Note:Update 2 jars for excel input/output
Merge pull request #55 from xqliu-talend/maintenance/5.6

TDQ-9492 "view keys" and "view index" function in overview anlaysis get ...
TBD-1104 : support mr 1 for CDH5.1 on DI Studio wizard
TBD-1104 : improve hadoop enums.
Merge branch 'maintenance/5.6'