TDQ-9543
1) show catalog and schema in the structure of Netezza connection and jdbc connection
2) let the analysis and indicator can run well on Netezza connection and jdbc connection
3) let reload/compare database connection, drill down, view keys/indexs run well on Netezza's connection and jdbc connection
TDQ-9543
a commit
Merge pull request #80 from xqliu-talend/maintenance/5.6

TDQ-9543
TDI-30739:DB2 connection retrieve schema produces 0 tables.
TDI-30739:DB2 connection retrieve schema produces 0 tables.
Merge branch 'maintenance/5.6'