initial version of retrieving contacts list
Merge pull request #8 from spencer1987/gh-pages

initial version of retrieving contacts list
translation is completed for retrieving contacts list
Merge pull request #9 from spencer1987/gh-pages

translation is completed for retrieving contacts list
Commit Post "Volley - Send Simple Request"
Compile Book for Post "Volley - Send Simple Post"
Update Readme - Post "The Wireless connectivity" is claimed by @acenodie
Merge pull request #10 from vincent4j/gh-pages

Action Bar - Setting Up the Action Bar 初稿
Commit Post Volley - RequestQueue and Request
add "creating-project" and releated images.
Merge pull request #11 from yuanfentiank789/gh-pages

add "creating-project" and releated images.