Link supported file types in template

Closes #1227

interfaces/Glitter/templates/include_overlays.tmpl

@@ -1,3 +1,5 @@
+<!--#from sabnzbd.constants import VALID_ARCHIVES, VALID_NZB_FILES#-->
+<!--#set $file_exts = ','.join(VALID_NZB_FILES + VALID_ARCHIVES)#-->
 <!-- Notifcation box -->
 <div class="main-notification-box" style="display: none">
     <div class="main-notification-box-uploading">
@@ -447,7 +449,7 @@
                             <div class="input-group" data-tooltip="true" data-placement="bottom" title="$T('Glitter-nzbFormats')">
                                 <label class="btn btn-default btn-file">
                                     <span class="glyphicon glyphicon-file"></span> <em>$T('Glitter-chooseFile')&hellip;</em>
-                                    <input type="file" multiple name="nzbFile" class="form-control" accept=".nzb,.rar,.zip,.gz,.bz2" data-bind="event : { change: updateBrowseLabel }" />
+                                    <input type="file" multiple name="nzbFile" class="form-control" accept="$file_exts" data-bind="event : { change: updateBrowseLabel }" />
                                 </label>
 
                                 <span class="input-group-btn">
@@ -572,7 +574,7 @@
                         <div class="input-group input-group-addfile" data-tooltip="true" data-placement="bottom" title="$T('Glitter-nzbFormats')">
                             <label class="btn btn-default btn-file">
                                 <span class="glyphicon glyphicon-file"></span> <em>$T('Glitter-chooseFile')&hellip;</em>
-                                <input type="file" name="nzbFile" class="form-control" accept=".nzb,.rar,.zip,.gz,.bz2" data-bind="event : { change: updateBrowseLabel }" />
+                                <input type="file" name="nzbFile" class="form-control" accept="$file_exts" data-bind="event : { change: updateBrowseLabel }" />
                             </label>
                         </div>
                     </fieldset>