message: Support `strictNullChecks` option
diff: @@ -20,7 +20,7 @@ export class TypeScriptSource extends OptionsComponent
  'watch', 'declaration', 'mapRoot',
  'sourceMap', 'inlineSources', 'removeComments',
  // Ignore new TypeScript 2.0 options until typedoc can't manage it.
  - 'lib', 'strictNullChecks', 'noImplicitThis',
  + 'lib', 'noImplicitThis',
  'traceResolution', 'noUnusedParameters', 'noUnusedLocals',
  'skipLibCheck', 'declarationDir', 'types', 'typeRoots'
  ];
  