Finish Studying Taifex Historical Data Crawler

## Target 
http://www.taifex.com.tw/eng/eng3/eng3_2.asp

ipynb:
http://nbviewer.ipython.org/github/dboyliao/PyCrawlers/blob/master/dev_ipynbs/dboydev/Dev_Dboy20141008_taifex_history_study.ipynb

http://nbviewer.ipython.org/github/dboyliao/PyCrawlers/blob/master/dev_ipynbs/dboydev/Dev_Dboy20141009_taifex_history_study.ipynb