Removed Devise, added basic authentication

Here is what I did:

I created a migration to get rid of the fields that Devise left behind. I also got rid of the Devise files.
The basic authentication is there. Data sets, sources, and tags can not be modified or destroyed by non-users. It will just redirect you to the login page.

One caveat: If you login with the wrong password, it will give you a 'template missing' error instead of returning you to the login page. I cannot figure out how to display the error in the view using form_tag .

I know we talked about users only being able to delete their data sets, sources, and tags and not others', but I would rather set up Rspec and get some tests up before I tackle those issues.
I suggest the bike shed be painted blue and white checkerboard!

On Thu, Jul 10, 2014 at 9:05 PM, torresga <notifications@github.com>
wrote:

>> @@ -22,6 +22,15 @@
>>              %li{:class => "#{'active' if current_page?(sources_path)}"}= link_to 'Sources', sources_path
>>              %li{:class => "#{'active' if current_page?(tags_path)}"}= link_to 'Tags', tags_path
>>            %ul.nav.navbar-nav.navbar-right
>> -            %li.disabled= link_to 'Log In', '#'
>> +            - if current_user
>> +              Logged in as #{current_user.email}.
>> +              = link_to "Log Out", logout_path
>> +            - else
>> +              = link_to "Sign Up", signup_path
>> +              or
>> +              \#{link_to "Log In", login_path}
> I do not want this to become a discussion about what color to paint the bike shed, so I'm just going to change it to Sign In and Out. 
> ---
> Reply to this email directly or view it on GitHub:
> https://github.com/PhillyHealthDataRepo/philly-open-health/pull/33/files#r14802470