fix #2137 and example for linedash #1331 (#2166)

Author: bwl21

examples/js/lines.js

@@ -23,4 +23,18 @@ doc.setLineWidth(1);
 doc.line(110, 20, 110, 60);
 
 doc.setLineWidth(1.5);
-doc.line(115, 20, 115, 60);
+doc.line(115, 20, 115, 60);
+
+doc.text(10,110, "setLineDash");
+
+doc.setLineWidth(0.1)
+doc.setDrawColor(0,0,0);
+
+doc.setLineDash([2.5])
+doc.line(10,120,200,120)
+
+doc.setLineDash([1, 1.5, 1, 1.5, 1, 1.5, 3, 2, 3, 2, 3, 2 ])
+doc.line(10,125,200,125)
+
+doc.setLineDash([1, 1.5, 1, 1.5, 1, 1.5, 3, 2, 3, 2, 3, 2 ], 7.5)
+doc.line(10,130,200,130)

index.html

@@ -28,7 +28,6 @@
 					<br/><span class="muted" id="dversion"></span>
 					</span>
 					<script>!function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0];if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src="//platform.twitter.com/widgets.js";fjs.parentNode.insertBefore(js,fjs);}}(document,"script","twitter-wjs");</script>
-					<p class="muted" style="text-align: right;">Version 0.9.0rc2</p-->
 
 				</div>
 				<h1 class="muted">jsPDF</h1>
@@ -84,6 +83,14 @@ <h2>Have a play.</h2>
 		<!-- Scripts down here -->
 		<script   src="https://code.jquery.com/jquery-3.1.1.min.js"   integrity="sha256-hVVnYaiADRTO2PzUGmuLJr8BLUSjGIZsDYGmIJLv2b8="   crossorigin="anonymous"></script>
 
+        <script type="text/javascript">
+          $(document).ready(function() {
+            if(jsPDF && jsPDF.version) {
+              $('#dversion').text('Version ' + jsPDF.version);
+            }
+          });
+        </script>
+
 		<!-- Code editor -->
 
 		<script src="https://cdnjs.cloudflare.com/ajax/libs/ace/1.2.5/ace.js" type="text/javascript" charset="utf-8"></script>