corrected some translation mistakes
翻译测试你的Activity主目录完成
corrected some translation mistakes in the chapter ---- printing
fix a wrong image problem in Stopping and Restarting an Activity
Merge pull request #74 from jdneo/gh-pages

corrected some translation mistakes
Merge pull request #76 from spencer1987/gh-pages

完成 使用Intent编辑联系人
Merge pull request #78 from bobzhangyong/gh-pages

fix a wrong image problem in Stopping and Restarting an Activity
- index draft
- screen-planning draft
- multi-sizes draft
revising multi.md
翻译创建单元测试完成,并修改一下之前的翻译
Merge pull request #79 from Andrwyw/gh-pages

revising multi.md
fix confilt
Merge branch 'huanglizhuo-gh-pages' into gh-pages
Update Readme
Compile Book
Merge pull request #80 from XizhiXu/gh-pages

Effectiv Navi
Update Readme
Compile Book For Nav
corrected some translation mistakes in chapter ---- OpenGL
nsd first charpter