Remove _blank from all header/footer.

content/_index.html

@@ -11,8 +11,7 @@ title: Secure messaging, anywhere
   </ul>
 <a 
 href="https://play.google.com/store/apps/details?id=org.briarproject.briar.android"
-rel="noopener noreferrer"
-target="_blank">
+rel="noopener noreferrer">
 <img
 id="playbutton"
 src="/img/google_play_badge_web_generic.png" alt="Get it on Google Play"></a>
@@ -25,9 +24,9 @@ src="/img/google_play_badge_web_generic.png" alt="Get it on Google Play"></a>
 <div class="clearboth"></div>
 <div id="flattr">
 <a href="https://liberapay.com/Briar/donate"
-rel="noopener noreferrer" target="_blank">
+rel="noopener noreferrer">
 <img alt="Donate using Liberapay" src="img/liberapay.svg"></a>
-<a href="https://flattr.com/t/592836/" rel="noopener noreferrer" target="_blank">
+<a href="https://flattr.com/t/592836/" rel="noopener noreferrer">
 <img src="img/flattr-badge-large.png" alt="Flattr this" title="Flattr this"></a>
 <br>
 Bitcoin: 1NZCKkUCtJV2U2Y9hDb9uq8S7ksFCFGR6K

layouts/shortcodes/googleplay.html

-<a href="{{.Get "url" }}" rel="noopener noreferrer" target="_blank">
+<a href="{{.Get "url" }}" rel="noopener noreferrer">
 <img id="playbutton" src="/img/google_play_badge_web_generic.png"
 alt="Get it on Google Play"></a>

themes/briar/layouts/partials/footer.html

@@ -2,9 +2,9 @@
     <div id="footer">
       <div id="signup2">
         <div id="twitter2">
-          <a href="https://twitter.com/BriarApp" rel="noopener noreferrer" target="_blank"><img class="twitterbutton" src="/img/twitter.png" alt="Small logo of twitter"/></a>
+          <a href="https://twitter.com/BriarApp" rel="noopener noreferrer"><img class="twitterbutton" src="/img/twitter.png" alt="Small logo of twitter"/></a>
         </div> <!-- twitter2 -->
-        <form id="signupform2" action="https://sourceforge.net/projects/briar/lists/briar-announce" rel="noopener noreferrer" target="_blank" method="get" onSubmit="submitForm2()">
+        <form id="signupform2" action="https://sourceforge.net/projects/briar/lists/briar-announce" rel="noopener noreferrer" method="get" onSubmit="submitForm2()">
           <input placeholder="Email address" type="email" name="email" tabindex="2"/>
           <button name="submit" type="submit" id="signup-submit2">Keep me updated</button>
         </form>

themes/briar/layouts/partials/header.html

@@ -4,9 +4,9 @@
         <div id="nav">
           <div id="signup">
             <div id="twitter">
-              <a href="https://twitter.com/BriarApp" rel="noopener noreferrer" target="_blank"><img class="twitterbutton" src="/img/twitter.png" alt="Small twitter logo"/></a>
+              <a href="https://twitter.com/BriarApp" rel="noopener noreferrer"><img class="twitterbutton" src="/img/twitter.png" alt="Small twitter logo"/></a>
             </div> <!-- twitter -->
-            <form id="signupform" action="https://sourceforge.net/projects/briar/lists/briar-announce" rel="noopener noreferrer" target="_blank" method="get" onSubmit="submitForm()">
+            <form id="signupform" action="https://sourceforge.net/projects/briar/lists/briar-announce" rel="noopener noreferrer" method="get" onSubmit="submitForm()">
               <input placeholder="Email address" type="email" name="email" tabindex="2"/>
               <button name="submit" type="submit" id="signup-submit">Keep me updated</button>
             </form>