Minor styling tweaks. Added Changelog entry.

Made it so that the link and the text are on the same level, and in the
center of the block.

CHANGELOG.rst

@@ -7,6 +7,8 @@ the top.  Include a label indicating the component affected.
 
 Blades: Add possibility to use multiple LTI tools per page.
 
+Blades: LTI module can now load external content in a new window.
+
 LMS: Disable data download buttons on the instructor dashboard for large courses
 
 LMS: Ported bulk emailing to the beta instructor dashboard.

common/lib/xmodule/xmodule/css/lti/lti.scss

@@ -6,14 +6,14 @@ div.lti {
         @include font-size(14);
         position: relative;
         background-color: $sidebar-color;
-        padding: ($baseline*1.5) ($baseline*1.5) ($baseline*1.5) $baseline;
+        padding: ($baseline*1.8) ($baseline*1.5) ($baseline*1.1) $baseline;
 
         .lti-link {
             position: absolute;
-            top: $baseline;
+            top: ($baseline*1.8);
             right: $baseline;
 
-             .link_lti_new_window {
+            .link_lti_new_window {
                 @extend .gray-button;
                 @include font-size(13);
                 @include line-height(14);
@@ -25,7 +25,6 @@ div.lti {
         display: none;
     }
 
-
     iframe.ltiLaunchFrame {
         width: 100%;
         height: 800px;
@@ -33,5 +32,4 @@ div.lti {
         border: 0px;
         overflow-x: hidden;
     }
-
 }