code: function getPlistFilenames(xcode) {
  	return unique(
  		flattenDeep(
  			xcode.document.projects.map(project => {
  				return project.targets.filter(Boolean).map(target => {
  					return target.buildConfigurationsList.buildConfigurations.map(
  						config => {
  							return config.ast.value.get("buildSettings").get("INFOPLIST_FILE")
  								.text;
  						}
  					);
  				});
  			})
  		)
  	);
  }
docs: Returns Info.plist filenames
  @private
  @param {Xcode} xcode Opened Xcode project file
  @return {Array} Plist filenames