bug fix: selenium test for 1NF

Signed-off-by: Smita Kumari <kumarismita62@gmail.com>
Merge pull request #1273 from smita786/gsoc_automated_normalizaion

bug fix: selenium test for 1NF
coding style fix: selenium test for 1NF

Signed-off-by: Smita Kumari <kumarismita62@gmail.com>
Merge pull request #1274 from smita786/gsoc_automated_normalizaion

coding style fix: selenium test for 1NF
Confirm that the expression is traversable

Signed-off-by: Marc Delisle <marc@infomarc.info>