Fix .rspec file

* Included option --form document which threw an
  error

* Fix with --format documentation
Add validations to Person and City classes

* Validates: presence of all fields
             proper format of email
             proper state abbreviations
			 proper format of zip code

* All validations TDD
  test files in spec/models
Add Guard and growl support for TDD
Improve validations on city & person classes

* Cleaned up TDD code

* Added tests for state to city class

* Added test for 0-prefix zip codes to people class

* Removed case-insensitive switch from REGEX

[#55054456]