Merge pull request #250 from kurtwalker/BACKLOG-353

Backlog 353
[BACKLOG-644] - replace shims by newer versions in big-data-plugin distro.

make cdh51 and cdh47 replace cdh50 and cdh42 respectively
Merge pull request #251 from mtseu/backlog-644

[BACKLOG-644] - replace cloudera shims by newer versions in big-data-plugin distro
Merge pull request #252 from kurtwalker/BACKLOG-353

[BACKLOG-353] - using the new ExtMenuList.  subsitution variables before...
[ENGOPS-712] removed oss license report
Merge pull request #254 from smaring/master

[ENGOPS-712] removed oss license report
[BACKLOG-353] - showing an error dialog on exception populating the driver class list.