Merge pull request #1 from LCTT/master

update
Merge remote-tracking branch 'lctt/master'
Merge remote-tracking branch 'lctt/master'
delete 20141229 5 User Space Debugging Tools in Linux.md
【翻译完成】20141229 5 User Space Debugging Tools in Linux
【翻译完成】20141229 5 User Space Debugging Tools in Linux
Merge pull request #2171 from mtunique/master

【翻译完成】20141229 5 User Space Debugging Tools in Linux