Re-useable ListManager POJO component

The list manager will be used by the various *List controllers in our
angular applications.  It provided basic list management methods.
bump revision number
hey, unit tests!
add the removeItem tests
add the firstItem unit tests
clean up karma files
remove sportng namespace
rework list manager to be a factory
no need to inject
Merge pull request #7 from sportngin/list-manager-2

List manager 2
Merge pull request #6 from sportngin/list-manager

List manager