Create 2014-01-24-LeiWangString&list.md
Update and rename 2014-01-13-LeiWangStringList.md to 2014-01-30-LeiWangStringList.md
Update Lei’s String & List Exercise
Update 2014-01-24-LeiWangString&list.md
Merge pull request #204 from leiw414/gh-pages

Lei Wang needs to post String&List Exercise