code: function getXcodeArgs (projectName, projectPath, configuration) {
      return [
          '-xcconfig', path.join(__dirname, '..', 'build-' + configuration.toLowerCase() + '.xcconfig'),
          '-project', projectName + '.xcodeproj',
          '-target', projectName,
          '-configuration', configuration,
          'build',
          'CONFIGURATION_BUILD_DIR=' + path.join(projectPath, 'build'),
          'SHARED_PRECOMPS_DIR=' + path.join(projectPath, 'build', 'sharedpch')
      ];
  }
docs: Returns array of arguments for xcodebuild
  @param  {String}  projectName   Name of xcode project
  @param  {String}  projectPath   Path to project file. Will be used to set CWD for xcodebuild
  @param  {String}  configuration Configuration name: debug|release
  @return {Array}                 Array of arguments that could be passed directly to spawn method