Merge pull request #4 from LCTT/master

2014.9.27
Merge pull request #26 from LCTT/master

Update Repository
Merge pull request #27 from LCTT/master

Update Repository
Merge pull request #28 from LCTT/master

Update Repository
[bazz2 -half the wolrk]20 Postfix Interview Questions and Answers
[bazz2]Fix one sentence
Merge pull request #29 from LCTT/master

Update Repository
Merge pull request #1799 from geekpi/master

[Trnalating] Adobe Pulls Linux PDF Reader Downloads From Website
Merge pull request #1800 from geekpi/master

[Trnalated] Adobe Pulls Linux PDF Reader Downloads From Website
[bazz2 work complete]20 Postfix Interview Questions and Answers
[bazz2] fix one sentence
Merge pull request #1801 from bazz2/master

[bazz2 work complete]20 Postfix Interview Questions and Answers
20141009-1 选题
20141009-2 选题
Update 20140821 How to configure a network printer and scanner on Ubuntu desktop.md

disylee来翻译，占坑
Merge pull request #1804 from disylee/master

Update 20140821 How to configure a network printer and scanner on Ubuntu...
Merge pull request #30 from LCTT/master

Update Repository
Update 20141009 Linux or UNIX wget command with practical examples.md
Merge pull request #1805 from GOLinux/master

[Translating] 20141009 Linux or UNIX wget command with practical examples.md
[Translated] 20141009 Linux or Unix wget command with practical examples.md