Added polish in readme to supported UI languages

Handling of missing tags in fb import
naming of path is more imitating calibre (replacement of special characters, "pinyining" of author names if unidecode is available )
Sorting of authors (similar to calibre for jr./sr./I..IV endings)
bugfix pathseparator on windows and linux during upload
bugfix os.rename for authordir
publishing date on detailview is formated according to slected locale
filename on downloading from web ui is now correct displayed
added ids to html for testing

cps/templates/admin.html

@@ -2,7 +2,7 @@
 {% block body %}
 <div class="discover">
   <h2>{{_('User list')}}</h2>
-  <table class="table table-striped">
+  <table class="table table-striped" id="table_user">
     <tr>
         <th>{{_('Nickname')}}</th>
         <th>{{_('Email')}}</th>
@@ -30,9 +30,9 @@
       {% endif %}
     {% endfor %}
   </table>
-    <div class="btn btn-default"><a href="{{url_for('new_user')}}">{{_('Add new user')}}</a></div>
+    <div class="btn btn-default" id="admin_new_user"><a href="{{url_for('new_user')}}">{{_('Add new user')}}</a></div>
   <h2>{{_('SMTP mail settings')}}</h2>
-  <table class="table table-striped">
+  <table class="table table-striped" id="table_email">
     <tr>
         <th>{{_('SMTP hostname')}}</th>
         <th>{{_('SMTP port')}}</th>
@@ -51,10 +51,10 @@
 
   </table>
 
-    <div class="btn btn-default"><a href="{{url_for('edit_mailsettings')}}">{{_('Change SMTP settings')}}</a></div>
+    <div class="btn btn-default" id="admin_edit_email"><a href="{{url_for('edit_mailsettings')}}">{{_('Change SMTP settings')}}</a></div>
 
   <h2>{{_('Configuration')}}</h2>
-  <table class="table table-striped">
+  <table class="table table-striped" id="table_configuration">
     <tr>
         <th>{{_('Calibre DB dir')}}</th>
         <th>{{_('Log Level')}}</th>
@@ -76,6 +76,7 @@
   <div class="btn btn-default"><a href="{{url_for('configuration')}}">{{_('Configuration')}}</a></div>
   <h2>{{_('Administration')}}</h2>
       {% if not development %}
+        <p>{{_('Current commit timestamp')}}: {{commit}} </p>
         <div class="btn btn-default" data-toggle="modal" data-target="#RestartDialog">{{_('Restart Calibre-web')}}</a></div>
         <div class="btn btn-default" data-toggle="modal" data-target="#ShutdownDialog">{{_('Stop Calibre-web')}}</a></div>
         <div class="btn btn-default" id="check_for_update">{{_('Check for update')}}</a></div>