Minor features/fixes

* Fix admin sub menus
* Show email address in people#index
* Add User Area link in navbar
* Smaller textareas on proposal#new so you don't have to scroll
* Counting of registrations, users and people
* Use datatables for users and people
* Show event type on admin/events#show

app/views/admin/people/index.html.haml

@@ -1,5 +1,11 @@
-%table.table.table-striped.table-bordered.table-hover
+%h2 
+  People
+  - if @people
+    = "(#{@people.length})"
+%table.table.table-striped.table-bordered.table-hover#people
   %thead
+    %th
+      %b Email
     %th
       %b Last Name
     %th
@@ -11,8 +17,16 @@
     %th
   - @people.each do |person|
     %tr
+      %td= person.email
       %td= person.last_name
       %td= person.first_name
       %td= person.public_name
       %td= person.registrations.count
-      %td= link_to "View", admin_person_path(person)
+      %td= link_to "View", admin_person_path(person)
+
+:javascript
+  $(document).ready(function() {
+      $('#people').dataTable( {
+        sPaginationType: "full_numbers"
+      } );
+  } );