Updated se/vcs/git/git-branch.md
Merge branch 'master' of github.com:shuge/man.acodemonkey.com
Updated ubuntu quick config, append section "Allow root login"
Updated chrome/extensions-for-chrome.md
Updated ubuntu/ubuntu-quick-config-guide.md
Merged debian/ into ubuntu/
Added tools/ps-quick-guide.md
added git-tips.txt