Merge branch 'release/3.1.8'

CHANGELOG.md

@@ -1,3 +1,15 @@
+## [3.1.8](https://github.com/mmistakes/minimal-mistakes/releases/tag/3.1.8)
+
+### Bug Fixes
+
+- Fix `Liquid Exception: undefined method 'gsub' for nil:NilClass in _layouts/single.html` error when `page.title` is null. `<h1>` element is now conditional if `title: ` is not set for a `page` or collection item. [#312](https://github.com/mmistakes/minimal-mistakes/issues/312)
+
+### Maintenance
+
+- Remove duplicate `fa-twitter` and `fa-twitter-square` classes from `_utilities.scss`. [#302](https://github.com/mmistakes/minimal-mistakes/issues/302)
+
+- Document installing additional Jekyll gem dependencies when using `gem "jekyll"` instead of `gem "github-pages"` to avoid any errors on run. [#305](https://github.com/mmistakes/minimal-mistakes/issues/305)
+
 ## [3.1.7](https://github.com/mmistakes/minimal-mistakes/releases/tag/3.1.7)
 
 ### Enhancement
@@ -6,7 +18,7 @@
 
 ### Maintenance
 
-- Small fix to avoid underlying the whitespace between icons and related text when hovering.[#303](https://github.com/mmistakes/minimal-mistakes/pull/303)
+- Small fix to avoid underlying the whitespace between icons and related text when hovering. [#303](https://github.com/mmistakes/minimal-mistakes/pull/303)
 
 ## [3.1.6](https://github.com/mmistakes/minimal-mistakes/releases/tag/3.1.6)
 

_layouts/single.html

@@ -26,7 +26,7 @@
     <div class="page__inner-wrap">
       {% unless page.header.overlay_color or page.header.overlay_image %}
         <header>
-          <h1 class="page__title" itemprop="headline">{{ page.title | markdownify | remove: "<p>" | remove: "</p>" }}</h1>
+          {% if page.title %}<h1 class="page__title" itemprop="headline">{{ page.title | markdownify | remove: "<p>" | remove: "</p>" }}</h1>{% endif %}
           {% if page.read_time %}
             <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> {% include read-time.html %}</p>
           {% endif %}

assets/_scss/_utilities.scss

@@ -201,11 +201,6 @@ body:hover .visually-hidden button {
     color: $facebook-color;
   }
 
-  .fa-twitter,
-  .fa-twitter-square {
-    color: $twitter-color;
-  }
-
   .fa-flickr {
     color: $flickr-color;
   }