create post model and post,user associations set up
rename post body column and to content
update email regex to account for dots before and after at sym
post model passing validation and creation tests
Merge pull request #12 from marklc44/master

create post model, validations, associations and testing
add sites controller with index action and site root route
add users controller with users resources routes, new, show and index templates
Merge pull request #13 from marklc44/master

sites and users controllers with routes and templates
Create User partial. Build user#new method