Email validation plugin

1.Setup the Rails project in Subversion by following the Subversion Primer for Rails blog post.
2. Ran into problems while installing plugins and after reading the James Adams's plugin book, I found the solution, I had to do:

script/plugin install –o https://svn.greenpeace.org/repositories/rails_plugins/validates_as_email/tags/0.1.4

to install the plugin.

I also looked at the test directory of the plugin and did the same assert in my unit test.