restful_authentication as submodule "dirty"

[alexandre-mbm]

Git complains:

#   modified:   vendor/plugins/restful_authentication (new commits)

See "How to ignore changes in git submodules" or here.

[alexandre-mbm]

I found the solution:

rm -rf vendor/plugins/restful_authentication/
git submodule init
git submodule update

With a .gitmodules:

[submodule "vendor/plugins/restful_authentication"]
    path = vendor/plugins/restful_authentication
    url = git://github.com/technoweenie/restful-authentication.git
    ignore = dirty

"ignore" can be : untracked, dirty or all.

Do I add a commit in the pull request #40? And so I could let the README.md corrected.

To get submodules automatically (ref):

git clone --recursive

Hi, @johnmckerrell!

Do you will accept the three pull requests that already exist?