Implements iChain authentication

app/views/users/edit.html.haml

@@ -0,0 +1,17 @@
+%h1 Edit your profile
+.row
+  .col-md-12
+    = semantic_form_for(@user, url: user_path(@user.id)) do |f|
+      = f.inputs name: 'Profile' do
+        = f.input :name, as: :string
+        = f.input :nickname, as: :string
+        = f.input :affiliation, as: :string,
+          hint: 'This could be a company, a user group, or nothing at all.'
+        = f.input :biography,  input_html: { rows: 5, 'onkeyup' => "word_count(this, 'biography-count', 150)" }
+        You have used
+        %span#bio_length
+          0
+        words.  Biographies are limited to 150 words.
+        %br
+        %br
+      = f.action :submit, as: :button, label: 'Update', button_html: {class: 'btn btn-primary'}