Update "Video - YouTube" Extractor's getAuthor()

FYI: https://gist.github.com/YungSang/7acd58f084f1748d0e28
     https://plus.google.com/109448778834120388056/posts/DVCUh3yrJHN
Update Amazon Extractor for more product pages
Prevent YouTube Extractor from working on deleted video page
v0.1.6

Model
* Fix a bug that can't upload a photo to Flickr #129
 * Update API_UPLOAD_URL
* Revise Instapaper Model
 * Fix a bug that can't post a link to Instapaper(remove "redirectionLimit: 0")
 * Refine "bookmark[selection]"(Summary)'s construction

Extractor
* Update Flickr extractor (iyoupapa) #133 #129
* "Photo - Flickr" Extractor: Fix author URL #129
* Update "Video - YouTube" Extractor's getAuthor()
* Prevent "Video - YouTube" Extractor from working on deleted video page
* Update Amazon Extractor for more product pages