Replace more Commercials with Materials

app/views/admin/reports/_all_events.html.haml

@@ -14,7 +14,7 @@
       %th Title
       %th Speakers Registered
       %th Speakers Biographies
-      %th Commercial
+      %th Materials
       %th Subtitle
       %th Difficulty Level
       - if @program.tracks.any?

app/views/admin/reports/_events_without_commercials.html.haml

@@ -5,7 +5,7 @@
         Events Without Materials
         = "(#{@events_missing_commercial.length})"
       %p.text-muted
-        All submissions that have no commercial
+        All submissions that have no materials
 .col-md-12
   %table.datatable
     %thead

app/views/admin/reports/index.html.haml

@@ -4,7 +4,7 @@
       = link_to 'All Events', '#all', 'data-toggle' => 'tab'
     %li
       %a{href: '#missing-commercial', 'data-toggle' => 'tab'}
-        Events without Commercials
+        Events without Materials
         %span.label.label-danger{style: 'border-radius: 1em;'}
           = @events_missing_commercial.length
     %li