[Translated] Ubuntu 14.04's System Settings received show/hide username option
Rename sources/Ubuntu 14.04's System Settings received show／hide username option.md to translated/Ubuntu 14.04's System Settings received show／hide username option.md
Merge pull request #775 from vito-L/master

Translating by Vito
发布：Daily Ubuntu Tips – Use Spotify In Ubuntu Linux
Merge pull request #776 from vito-L/master

Translated by Vito
Update How to set up RainLoop webmail in Ubuntu server.md
Merge branch 'master' of https://github.com/LCTT/TranslateProject