Removed separate SourceNotifier class to match original code
Merge pull request #3 from UI/master

Ishmulevich/review pending/apply type checking to service locator
Minor formatting and version updates

Replaced tabs with spaces and eliminated older version
Merge pull request #4 from UI/master

Minor formatting and version updates
Applied minor formatting updates

Merge af92572322945b546201fa11ec4b95a510217da5  from upstream review-pending/apply-type-checking-to-ServiceLocator