Refactor creating a new report to use a ReportsController

It's really a report that the user is creating, the issue is created indirectly. Similar
refactoring will be required for issue comments.

app/views/reports/new.html.erb

@@ -0,0 +1,42 @@
+<% content_for :heading do %>
+  <h1>Report <%= reportable_url(@report.issue.reportable) %></h1>
+<% end %>
+
+<div class="disclaimer">
+  <ul>
+    <%= t('issues.new.disclaimer.intro') %>:
+      <li> <%= t('issues.new.disclaimer.not_just_mistake') %> </li>
+      <li> <%= t('issues.new.disclaimer.unable_to_fix') %> </li>
+      <li> <%= t('issues.new.disclaimer.resolve_with_user') %> </li>
+    </ul>
+</div>
+
+<%= form_for(@report) do |f| %>
+  <%= f.error_messages %>
+  <fieldset>
+    <%= f.fields_for @report.issue do |issue_form| %>
+      <%= issue_form.hidden_field :reportable_id %>
+      <%= issue_form.hidden_field :reportable_type %>
+    <% end %>
+
+    <div class='form-row' style='width:600px'>
+      <p><%= t('issues.new.select') %>:</p>
+
+      <div class="new-report-form">
+        <% @report_strings_yaml.each do |k,v| %>
+          <div style="padding-left:5px">
+            <%= radio_button_tag :report_type, v[:type].to_s %>
+            <%= label_tag v[:details].to_s %> <br/>
+          </div>
+        <% end %>
+      </div>
+
+      <br/>
+      <%= text_area :report, :details, :cols => 20, :rows => 3, placeholder: t('issues.new.details'), required: true %>
+    </div>
+
+    <div class='buttons'>
+      <%= submit_tag %>
+    </div>
+  </fieldset>
+<% end %>