Allow the header bar customization

This commit also provide a way to escape the Shorcuts page on
Sandstorm.

client/components/main/header.jade

@@ -32,10 +32,7 @@ template(name="header")
       current page. This bar is contextual based.
       If the user is not connected we display "sign in" and "log in" buttons.
     #header-main-bar(class="{{#if wrappedHeader}}wrapper{{/if}}")
-      if $.Session.get 'currentBoard'
-        +headerBoard
-      else if($eq currentRouteName 'home')
-        +headerTitle
+      +Template.dynamic(template=headerBar)
 
       //-
         On sandstorm, the logo shouldn't be clickable, because we only have one
@@ -47,11 +44,3 @@ template(name="header")
       else
         a.wekan-logo(href="{{pathFor 'home'}}" title="{{_ 'header-logo-title'}}")
           img(src="{{pathFor '/wekan-logo-header.png'}}" alt="Wekan")
-
-template(name="headerTitle")
-  h1 {{_ 'my-boards'}}
-
-  .board-header-btns.right
-    a.board-header-btn.js-open-archived-board
-      i.fa.fa-archive
-      span {{_ 'archives'}}