Merge pull request #2085 from GOLinux/master

[Translating] 20141208 Linux FAQs with Answers--How to crop an image from the command line on Linux.md
Merge pull request #2086 from GOLinux/master

[Translated] 20141208 Linux FAQs with Answers--How to crop an image from the command line on Linux.md
Merge pull request #2087 from GOLinux/master

[Translating] 20141208 Nathive--A libre software image editor.md
Merge pull request #2088 from GOLinux/master

[Translating] 20141208 Getting Started With Ubuntu 14.04 (PDF Guide).md
Merge pull request #2089 from GOLinux/master

[Translated] 20141208 Nathive--A libre software image editor.md
yupmoon translating
20141210-1 选题
su-kaiyao translated
Merge pull request #2090 from yupmoon/master

yupmoon translating 20141204 Readers' Choice Awards 2014--Linux Journal
Merge pull request #2091 from su-kaiyao/master

su-kaiyao translated 20141205 10 free Commands to Check Memory Usage in Linux.md
Merge pull request #7 from LCTT/master

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