Change hostname to certname where applicable (#294)

Certain column headers were referring to a node's certname as its
hostname. This commit corrects that by renaming the column headers.

puppetboard/templates/_macros.html

@@ -95,7 +95,7 @@
       <th class="default-sort">Start time</th>
       <th>Status</th>
       {% if show_host_col %}
-        <th>Hostname</th>
+        <th>Certname</th>
       {% endif %}
       {% if show_run_col %}
       <th>Run time</th>

puppetboard/templates/catalog.html

@@ -7,7 +7,7 @@
 <table class='ui very basic very compact table'>
   <thead>
     <tr>
-      <th>Hostname</th>
+      <th>Certname</th>
       <th>Version</th>
       <th>Transaction UUID</th>
       <th>Code ID</th>

puppetboard/templates/catalogs.html

@@ -8,7 +8,7 @@
   <thead>
     <tr>
       <th></th>
-      <th>Hostname</th>
+      <th>Certname</th>
       <th>Compile Time</th>
       <th>Compare With</th>
     </tr>

puppetboard/templates/index.html

@@ -68,7 +68,7 @@
         <thead>
           <tr>
             <th class="five wide">Status</th>
-            <th class="five wide">Hostname</th>
+            <th class="five wide">Certname</th>
             <th class="five wide date default-sort">Report</th>
             <th class="one wide"></th>
           </tr>

puppetboard/templates/node.html

@@ -8,7 +8,7 @@
       <table class="ui very basic very compact table">
         <tbody>
           <tr>
-            <th>Hostname</th>
+            <th>Certname</th>
             <td style="word-wrap:break-word"><b>{{node.name}}</b></td>
           </tr>
           <tr>

puppetboard/templates/nodes.html

@@ -8,7 +8,7 @@
   <thead>
     <tr>
       <th>Status</th>
-      <th class="default">Hostname</th>
+      <th class="default">Certname</th>
       <th class="date default-sort">Catalog</th>
       <th class="date">Report</th>
       <th>&nbsp;</th>

puppetboard/templates/report.html

@@ -4,7 +4,7 @@
 <table class='ui basic table'>
   <thead>
     <tr>
-      <th>Hostname</th>
+      <th>Certname</th>
       <th>Configuration version</th>
       <th>Start time</th>
       <th>End time</th>