Upgrade Slate sample to Slate 1.5

Closes gh-361

samples/rest-notes-slate/slate/source/stylesheets/screen.css.scss

@@ -1,8 +1,6 @@
 @charset "utf-8";
 @import 'normalize';
-@import 'compass';
 @import 'variables';
-@import 'syntax';
 @import 'icon-font';
 
 /*
@@ -84,6 +82,7 @@ html, body {
   // This is the logo at the top of the ToC
   &>img {
     display: block;
+    max-width: 100%;
   }
 
   &>.search {
@@ -111,7 +110,7 @@ html, body {
     }
   }
 
-  img+.tocify {
+  img+.tocify, .lang-selector+.tocify {
     margin-top: $logo-margin;
   }
 
@@ -340,7 +339,7 @@ html, body {
     padding: 0 $main-padding;
     box-sizing: border-box;
     display: block;
-    @include text-shadow($main-embossed-text-shadow);
+    text-shadow: $main-embossed-text-shadow;
 
     @extend %left-col;
   }
@@ -471,7 +470,7 @@ html, body {
   aside {
     padding-top: 1em;
     padding-bottom: 1em;
-    @include text-shadow(0 1px 0 lighten($aside-notice-bg, 15%));
+    text-shadow: 0 1px 0 lighten($aside-notice-bg, 15%);
     margin-top: 1.5em;
     margin-bottom: 1.5em;
     background: $aside-notice-bg;
@@ -479,12 +478,12 @@ html, body {
 
     &.warning {
       background-color: $aside-warning-bg;
-      @include text-shadow(0 1px 0 lighten($aside-warning-bg, 15%));
+      text-shadow: 0 1px 0 lighten($aside-warning-bg, 15%);
     }
 
     &.success {
       background-color: $aside-success-bg;
-      @include text-shadow(0 1px 0 lighten($aside-success-bg, 15%));
+      text-shadow: 0 1px 0 lighten($aside-success-bg, 15%);
     }
   }
 
@@ -511,7 +510,7 @@ html, body {
     margin: -2px;
     border-radius: 4px;
     border: 1px solid #F7E633;
-    @include text-shadow(1px 1px 0 #666);
+    text-shadow: 1px 1px 0 #666;
     background: linear-gradient(to top left, #F7E633 0%, #F1D32F 100%);
   }
 }
@@ -534,7 +533,7 @@ html, body {
     clear:right;
 
     box-sizing: border-box;
-    @include text-shadow(0px 1px 2px rgba(0,0,0,0.4));
+    text-shadow: 0px 1px 2px rgba(0,0,0,0.4);
 
     @extend %right-col;
 
@@ -618,3 +617,11 @@ html, body {
     margin-top: $main-padding;
   }
 }
+
+.highlight .c, .highlight .cm, .highlight .c1, .highlight .cs {
+  color: #909090;
+}
+
+.highlight, .highlight .w {
+  background-color: $code-bg;
+}