Merge branch 'icon-color-fix' into 'master'

Update activity SVG path

## What does this MR do?
Fixes SVG path so the activity icon is the correct color

## Screenshots (if relevant)
<img src="/uploads/ea948338ea816890851a8011b8b3255f/Screen_Shot_2016-06-09_at_8.43.05_AM.png" width="600px">


See merge request !4563

app/views/layouts/nav/_project.html.haml

@@ -129,5 +129,4 @@
       %li.hidden
         = link_to project_commits_path(@project), title: 'Commits', class: 'shortcuts-commits' do
           Commits
-
     .fade-right

app/views/shared/icons/_activity.svg

@@ -3,13 +3,14 @@
     <!-- Generator: Sketch 3.8.3 (29802) - http://www.bohemiancoding.com/sketch -->
     <title>path-1</title>
     <desc>Created with Sketch.</desc>
-    <defs>
-        <path d="M5,0 C4.448,0 4,0.448 4,1 L4,3 L1,3 C0.448,3 0,3.448 0,4 L0,9 C0,9.552 0.448,10 1,10 L5,10 L5,8 L11,8 L11,10 L15,10 C15.552,10 16,9.552 16,9 L16,4 C16,3.448 15.552,3 15,3 L12,3 L12,1 C12,0.448 11.552,0 11,0 L5,0 L5,0 L5,0 Z M6,2.5 C6,2.224 6.224,2 6.5,2 L9.5,2 C9.776,2 10,2.224 10,2.5 C10,2.776 9.776,3 9.5,3 L6.5,3 C6.224,3 6,2.776 6,2.5 L6,2.5 L6,2.5 Z M6,11 L10.001,11 L10.001,9 L6,9 L6,11 L6,11 L6,11 Z M11,11 L11,12 L5,12 L5,11 L1,11 C0.448,11 0,11.448 0,12 L0,15 C0,15.552 0.448,16 1,16 L15,16 C15.552,16 16,15.552 16,15 L16,12 C16,11.448 15.552,11 15,11 L11,11 L11,11 L11,11 Z" id="path-1"></path>
-    </defs>
+    <defs></defs>
     <g id="Page-1" stroke="none" stroke-width="1" fill="none" fill-rule="evenodd">
-        <mask id="mask-2" fill="white">
-            <use xlink:href="#path-1"></use>
-        </mask>
-        <use id="path-1" fill="#D8D8D8" xlink:href="#path-1"></use>
+        <g id="_activity" fill="#7E7D7D">
+            <g id="Page-1">
+                <g id="path-1">
+                    <path d="M5,0 C4.448,0 4,0.448 4,1 L4,3 L1,3 C0.448,3 0,3.448 0,4 L0,9 C0,9.552 0.448,10 1,10 L5,10 L5,8 L11,8 L11,10 L15,10 C15.552,10 16,9.552 16,9 L16,4 C16,3.448 15.552,3 15,3 L12,3 L12,1 C12,0.448 11.552,0 11,0 L5,0 L5,0 L5,0 L5,0 Z M6,2.5 C6,2.224 6.224,2 6.5,2 L9.5,2 C9.776,2 10,2.224 10,2.5 C10,2.776 9.776,3 9.5,3 L6.5,3 C6.224,3 6,2.776 6,2.5 L6,2.5 L6,2.5 L6,2.5 Z M6,11 L10.001,11 L10.001,9 L6,9 L6,11 L6,11 L6,11 L6,11 Z M11,11 L11,12 L5,12 L5,11 L1,11 C0.448,11 0,11.448 0,12 L0,15 C0,15.552 0.448,16 1,16 L15,16 C15.552,16 16,15.552 16,15 L16,12 C16,11.448 15.552,11 15,11 L11,11 L11,11 L11,11 L11,11 Z"></path>
+                </g>
+            </g>
+        </g>
     </g>
 </svg>
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