Merge pull request #936 from linuhap/master

[translated] Ubuntu Fixes Security Flaw in 14.04 LTS Lock Screen.md...
发布：Atom Is Now Open Source
发布：Ubuntu 14.10 (Utopic Unicorn) Daily Images Now Available for Download
发布：Ubuntu After Install--Automate the Installation of all popular softwares On Ubuntu 14.04 or 13.10 or 13.04 or 12.10 or 12.04