Enable print button

Author: atishdhu

web/viewer.html

@@ -320,7 +320,7 @@
                 <div id="editorModeSeparator" class="verticalToolbarSeparator hidden"></div>
 
                 <div class="toolbarHorizontalGroup hiddenMediumView">
-                  <button id="printButton" class="toolbarButton hidden" type="button" title="Print" tabindex="0" data-l10n-id="pdfjs-print-button">
+                  <button id="printButton" class="toolbarButton" type="button" title="Print" tabindex="0" data-l10n-id="pdfjs-print-button">
                     <span data-l10n-id="pdfjs-print-button-label">Print</span>
                   </button>
 
@@ -329,7 +329,7 @@
                   </button>
                 </div>
 
-                <div class="verticalToolbarSeparator hiddenMediumView hidden"></div>
+                <div class="verticalToolbarSeparator hiddenMediumView"></div>
 
                 <div id="secondaryToolbarToggle" class="toolbarButtonWithContainer">
                   <button id="secondaryToolbarToggleButton" class="toolbarButton" type="button" title="Tools" tabindex="0" data-l10n-id="pdfjs-tools-button" aria-expanded="false" aria-haspopup="true" aria-controls="secondaryToolbar">