lk | adds search bar to header

app/views/layouts/_navbar.html.erb

@@ -11,12 +11,20 @@
 
   <div class="navbar-collapse collapse navbar-responsive-collapse" id='collapse-1'>
     <ul class="nav navbar-nav navbar-right">
-      <li><%= if current_user
-                link_to "Sign Out", destroy_user_session_path, method: :delete
-              else
-                link_to "Sign In", new_user_session_path
-              end %></li>
-
+      <li class="bike-search">
+        <%= form_tag("bikes/search", method: "get", class: "form-inline") do %>
+          <%= label_tag(:log_number, "Search for a bike by log number:") %>
+          <%= text_field_tag :log_number, "", class: "form-control" %>
+          <%= submit_tag("Search", class: "btn btn-default") %>
+        <% end %>
+      </li>
+      <li>
+        <%= if current_user
+              link_to "Sign Out", destroy_user_session_path, method: :delete
+            else
+              link_to "Sign In", new_user_session_path
+        end %>
+      </li>
     </ul>
   </div>
 </nav>