Add mini scorecard for cricket

Extended the cricket model to handle detailed information about each innings. Change the routes for the cricket controller to include the sport section, and use .json in path. Add styling for the mini scorecard block. Use custom ajax load rather than lazy load so that two html fragments can be loaded from a single ajax request.
Add styling changes for mini-scorecard

Modify cricket.js so that the client can specify which cricket blocks are injected.
Rename cricket matches array to something more intuitive
Fix sass indentation and comment error
Fix heading padding and SASS/javascript coding style
Fix padding error for padding-top in cricket heading
Merge pull request #1175 from guardian/cricket

Cricket