Editor / Add view name class to facilitate custom styling

This can facilitate customization of the style of the editor.

Previously only the tab identifier was provided making more difficult to define global editor styles common for all tabs and was not providing simple way to customize the side panel.

web/src/main/webapp/xslt/ui-metadata/edit/edit.xsl

@@ -74,7 +74,7 @@
                   select="exists($viewConfig/@class)"/>
     <xsl:variable name="hasSidePanel"
                   select="exists($viewConfig/sidePanel) and $isTemplate != 's' and $isTemplate != 't'"/>
-    <div id="gn-editor-container-{$metadataId}">
+    <div id="gn-editor-container-{$metadataId}" class="gn-view-{$viewConfig/@name}">
       <form id="gn-editor-{$metadataId}"
             name="gnEditor" accept-charset="UTF-8" method="POST"
             novalidate="" class="form-horizontal gn-editor gn-tab-{$tab} {if ($hasViewClass) then concat('gn-editor-config-css ', $viewConfig/@class) else ''}" role="form"