TNL-171: Change topic of a previously posted post.

lms/static/sass/application-extend2.scss.mako

@@ -56,7 +56,7 @@
 @import "discussion/elements/labels";
 @import "discussion/elements/navigation";
 @import "discussion/views/thread";
-@import "discussion/views/new-post";
+@import "discussion/views/create-edit-post";
 @import "discussion/views/response";
 @import 'discussion/utilities/developer';
 @import 'discussion/utilities/shame';

lms/static/sass/discussion/utilities/_shame.scss

@@ -107,7 +107,8 @@ li[class*=forum-nav-thread-label-] {
 // new post form
 // -------------
 
-.forum-new-post-form {
+.forum-new-post-form,
+.edit-post-form {
   // Override global label rules
   .post-type {
     text-shadow: none;
@@ -127,7 +128,7 @@ li[class*=forum-nav-thread-label-] {
     margin-bottom: 0;
   }
 
-  // Override global span rules 
+  // Override global span rules
   .post-topic-button .drop-arrow {
     line-height: 36px;
   }

lms/static/sass/discussion/views/_create-edit-post.scss

@@ -2,7 +2,8 @@
 // ====================
 
 // UI: form structure
-.forum-new-post-form {
+.forum-new-post-form,
+.edit-post-form {
   @include clearfix;
   box-sizing: border-box;
   margin: 0;
@@ -64,7 +65,8 @@
 // ====================
 
 // UI: inputs
-.forum-new-post-form {
+.forum-new-post-form,
+.edit-post-form {
   .post-topic-button {
     @include white-button;
     @extend %cont-truncated;
@@ -172,7 +174,8 @@
 // ====================
 
 // UI: errors - new post creation
-.forum-new-post-form {
+.forum-new-post-form,
+.edit-post-form {
   .post-errors {
     margin-bottom: $baseline;
     border-radius: 3px;
@@ -199,7 +202,8 @@
 // UI: topic menu
 
 // TO-DO: refactor to use _navigation.scss as general topic selector
-.forum-new-post-form .post-topic {
+.forum-new-post-form .post-topic ,
+.edit-post-form .post-topic {
   position: relative;
 
   .topic-menu-wrapper {