Refine I log out web step.

- Refine I log out web step.
Add step def to save the project.

- Refine feature tests by adding step def to save
  the project as suggested by Concord.
Merge fixes from previous pull request.

 - Merge branch 'pull_request_03_25_2013_a'
   into pull_request_04_04_2013_a.