add Chapter 8>Figure 3>rec_regression_network_en.png

fix issue #110

fix issue #110

fix issue #115

Make word2vec/README.en.md uses English version Figure 5.

add ngram_en.png

fix issue #114

Insert new MNIST example program from the Chinese README.md into the English version

Polishing sentiment role labeling using paid Grammeraly

Add .DS_Store into .gitignore

Semantic labeling tutorial data and code section in English.

Update build.sh and update all html files

1st round chapter 8

Use English figures in all README.en.md files

added figure 5 translation in chapter 4