docs: Update release calendar, add news item, and add release notes for 18.1.5
diff --git a/docs/index.html b/docs/index.html
index 2414a70..f0a153a 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -16,6 +16,12 @@
 
 <h1>News</h1>
 
+<h2>July 27, 2018</h2>
+<p>
+<a href="relnotes/18.1.5.html">Mesa 18.1.5</a> is released.
+This is a bug-fix release.
+</p>
+
 <h2>July 13, 2018</h2>
 <p>
 <a href="relnotes/18.1.4.html">Mesa 18.1.4</a> is released.
diff --git a/docs/release-calendar.html b/docs/release-calendar.html
index 8e23b7f..c086b90 100644
--- a/docs/release-calendar.html
+++ b/docs/release-calendar.html
@@ -39,13 +39,7 @@
 <th>Notes</th>
 </tr>
 <tr>
-<td rowspan="4">18.1</td>
-<td>2018-07-27</td>
-<td>18.1.5</td>
-<td>Dylan Baker</td>
-<td></td>
-</tr>
-<tr>
+<td rowspan="3">18.1</td>
 <td>2018-08-10</td>
 <td>18.1.6</td>
 <td>Dylan Baker</td>
diff --git a/docs/relnotes.html b/docs/relnotes.html
index eecb5a8..9d4a262 100644
--- a/docs/relnotes.html
+++ b/docs/relnotes.html
@@ -21,6 +21,7 @@
 </p>
 
 <ul>
+<li><a href="relnotes/18.1.5.html">18.1.5 release notes</a>
 <li><a href="relnotes/18.1.4.html">18.1.4 release notes</a>
 <li><a href="relnotes/18.1.3.html">18.1.3 release notes</a>
 <li><a href="relnotes/18.1.2.html">18.1.2 release notes</a>