fixed design new issue form

app/assets/stylesheets/projects.css.scss

@@ -212,3 +212,7 @@ input.git_clone_url {
 #issue_assignee_id {
   width:300px;
 }
+
+#new_issue_dialog textarea{
+    height: 100px;
+}

app/views/issues/_form.html.haml

@@ -23,7 +23,7 @@
 
     .clearfix
       = f.label :title
-      .input= f.text_area :title, :maxlength => 255, :class => "xlarge"
+      .input= f.text_area :title, :maxlength => 255, :class => "xxlarge"
     .actions
       = f.submit 'Save', :class => "primary btn"