[minor] async pagelet.optimize changes
[fix] sync readdir and only emit event after all pagelets are optimized
[fix] move next function outside iterator
[fix] make sure child pagelets brand function calls are also iterated async
[fix] call brand with proper brand
[fix] only call for transformation if the prototype.css/js is already an array
[fix] mock page object for pagelet
Merge pull request #3 from nodejitsu/bigpipe-0.8

Bigpipe 0.8