- force string comparison between the input's value (which is always a string) and the data model's value
- create new radio box input to test the checked/unchecked routines
- add the test DOM elements to the page because I believe dom manipulations behave more accurately in browsers
- update jasmine test case to verify that the checked/unchecked routines work properly when we assign a truthy/falsey model value
- add checkboxes for testing too
- factorise some code into a createInputElement() function
Merge pull request #143 from kayhadrin/improve-radio-box-binders

Improve checked/unchecked binders for radio box