Added links to help center from help panel

h/templates/client/help_link.html

 
 <a class="help-panel-content__link"
    href="mailto:support@hypothes.is?subject=Hypothesis%20support&amp;body=Version:%20{{ vm.version }}%0D%0AUser%20Agent:%20{{vm.userAgent}}%0D%0AURL:%20{{ vm.url }}%0D%0APDF%20fingerprint:%20{{ vm.documentFingerprint ? vm.documentFingerprint : '-' }}%0D%0AUsername:%20{{ vm.auth.username ? vm.auth.username : '-' }}%0D%0ADate:%20{{ vm.dateTime | date:'dd MMM yyyy HH:mm:ss Z' }} "
->Send us a message</a>
+>Send us an email</a>

h/templates/client/help_panel.html

@@ -15,9 +15,9 @@
       document-fingerprint="vm.documentFingerprint"
       auth="vm.auth"
       date-time="vm.dateTime">
-    </help-link>
-    if you have any questions or want to give us feedback.
-    You can also visit our <a class="help-panel-content__link" href="{{vm.serviceUrl('help')}}" target="_blank"> help documents</a>.
+    </help-link> if you have any questions or want to give us feedback.
+    You can also send <a class="help-panel-content__link" href="https://hypothesis.zendesk.com/hc/en-us/requests/new" target="_blank">a support ticket</a>
+    or visit our <a class="help-panel-content__link" href="https://hypothesis.zendesk.com/hc/en-us" target="_blank"> help documents</a>.
   </div>
   <header class="help-panel-title">
     About this version