Fix two failing test cases

<h4>Summary</h4>

There are two failing test cases. The error is caused by the "Number Sequence" node. In one case, it is like:
![image](https://cloud.githubusercontent.com/assets/5584246/5197301/1c3e8580-757b-11e4-873c-e7749218f579.png)

Here the fix is two change the value of the node for the step from 0 to 1.

<h4>Reviewers</h4>
@sharadkjaiswal 
@riteshchandawar 
PTAL