building basic auth & read product functions.
add pic trans.
TODO: change to tb sdk and finish uploading image func.
finish picture trans with taobao sdk
1. add re-upload picture in desc and replace old one
2. add clone product step1
add bind pic function
add all functions
remove all useless link tag.
Merge pull request #1 from phariel/v1-with-sdk

V1 with sdk