Merge pull request #46 from viig99/master

Commit for adding option to modify env variables from with test cases, U...
Added data test data
Fixed merge conflicts
Added Data vars for json
Added csv parsing for data import
linting changes
Added a transformed object to request
Added jshint options and linting changes
Moved validators in Helpers
Parenthesis fix for function variable
Fixed PR comments
Some documentation and Helper functions
Organized tests and added non-working test for iteration runner
Merge pull request #48 from prakhar1989/master

Finalizing iteration runner with collections
Fixed undefined response bug and made testrunner the default
Merge pull request #49 from prakhar1989/master

Fixed bug and made test runner default
Adding changes as per asthan's comments.