Updated version in the not-supported dialog to 2.1

Author: wdamien

index.html

@@ -355,7 +355,7 @@ <h1 class="icon regexr-logo">&#xE600;</h1><h1 class="regexr-text">RegExr</h1><sp
 	<div class="top">
 		<h1 class="icon regexr-logo">&#xE600;</h1>
 
-		<h1 class="regexr-text">RegExr</h1><span class="version regexr-text">v2.0</span>
+		<h1 class="regexr-text">RegExr</h1><span class="version regexr-text">v2.1</span>
 	</div>
 	<div class="content">
 		<p>RegExr requires a modern browser. Please update your browser to the latest version and try again.</p>