Added persistance spec placeholder
Added persistance specs for save and load
Updated rspec matchers from should to expect to fix travis errors
Since expect did not work, trying to remove the dynamic booleans: be_false, be_true
Merging pull request #10 from 7_add_persistance_specs

Issue 7
Milestone v0.0.3

* origin/7_add_persistance_specs:
  Since expect did not work, trying to remove the dynamic booleans: be_false, be_true
  Updated rspec matchers from should to expect to fix travis errors
  Added persistance specs for save and load
  Added persistance spec placeholder