Refactor default data creation.

- Minimize calls to recursive_symbolize_keys method.
Refine default data creation.

- Print object insertion status for some objects.
Merge branch 'test_data_reset_04_08_2013_a'

- Merge branch 'test_data_reset_04_08_2013_a'
  into test_data_reset_04_17_2013_a.