here comes the rails4 code
update README
change old user password
new file:   .rbenv-version
should be this version
I want to use 2.0.0-xxx replace 2.0.0-dev
amend issue-list info in welcome page
Merge pull request #12 from july-12/about-issue-list

About issue list
can't deploy app to the sever without .rbenv-version