docs: function updateXCBuildConfiguration(item, buildConfig, mode){
          var modified = false;
          for(var blockName in buildConfig){
              var block = buildConfig[blockName];
  
              if(typeof(block) !== "object" || !(block["buildSettings"])) continue;
              var literalMatch = !!block["buildSettings"][item.name],
                  quotedMatch = !!block["buildSettings"][quoteEscape(item.name)],
                  match = literalMatch || quotedMatch;
  
              if((match || mode === "add") &&
                  (!item.buildType || item.buildType.toLowerCase() === block['name'].toLowerCase())){
  
                  var name;
                  if(match){
                      name = literalMatch ? item.name : quoteEscape(item.name);
                  }else{
                      // adding
                      name = (item.quote && (item.quote === "none" || item.quote === "value")) ? item.name : quoteEscape(item.name);
                  }
                  var value = (item.quote && (item.quote === "none" || item.quote === "key")) ? item.value : quoteEscape(item.value);
  
                  block["buildSettings"][name] = value;
                  modified = true;
                  logger.verbose(mode+" XCBuildConfiguration key={ "+name+" } to value={ "+value+" } for build type='"+block['name']+"' in block='"+blockName+"'");
              }
          }
          return modified;
      }