A big, fat commit with a shitload of internal changes. Not that much

visual changes:

- removed redundant files user.class.php, calendar.class.php
  and backend.class.php.
- converted *all* mysql queries to queries supported by the
  database abstraction layer.
- expanded the watchdog to record more information on what
  actually happened.
- bugfix: anonymous readers where not able to view comments.
- bugfix: anonymous readers could gain read-only access to
  the submission queue.
- bugfix: invalid includes in backend.php
- bugfix: invalid use of '$user->block'

and last but not least:

- redid 50% of the user account system

1 files changed, 0 insertions, 76 deletions

diff --git a/includes/calendar.class.php b/includes/calendar.class.php
deleted file mode 100644
index 561363c33..000000000
--- a/includes/calendar.class.php
+++ /dev/null
@@ -1,76 +0,0 @@
-<?
-
-class calendar {
-  var $date;
-
-  function calendar($date) {
-    $this->date = $date;
-  }
-
-  function display() {
-    global $PHP_SELF;
-
-    ### Extract information from the given date:
-    $month  = date("n", $this->date);
-    $year = date("Y", $this->date);
-    $day = date("d", $this->date);
-
-    ### Extract first day of the month:
-    $first = date("w", mktime(0, 0, 0, $month, 1, $year));
-        
-    ### Extract last day of the month:
-    $last = date("t", mktime(0, 0, 0, $month, 1, $year));
-
-    ### Calculate previous and next months dates:
-    $prev = mktime(0, 0, 0, $month - 1, $day, $year);
-    $next = mktime(0, 0, 0, $month + 1, $day, $year);
-
-    ### Generate calendar header:
-    $output .= "\n<!-- calendar -->\n";
-    $output .= "<TABLE WIDTH=\"100%\" BORDER=\"1\" CELLSPACING=\"0\" CELLPADDING=\"1\">\n";
-    $output .= " <TR><TD ALIGN=\"center\" COLSPAN=\"7\"><SMALL><A HREF=\"$PHP_SELF?date=$prev\">&lt;</A> &nbsp; ". date("F Y", $this->date) ." &nbsp; <A HREF=\"$PHP_SELF?date=$next\">&gt;</A></SMALL></TD></TR>\n";
-    $output .= " <TR><TD ALIGN=\"center\"><SMALL>S</SMALL></TD><TD ALIGN=\"center\"><SMALL>M</SMALL></TD><TD ALIGN=\"center\"><SMALL>T</SMALL></TD><TD ALIGN=\"center\"><SMALL>W</SMALL></TD><TD ALIGN=\"center\"><SMALL>T</SMALL></TD><TD ALIGN=\"center\"><SMALL>F</SMALL></TD><TD ALIGN=\"center\"><SMALL>S</SMALL></TD></TR>\n";
- 
-    ### Initialize temporary variables:
-    $nday = 1;
-    $sday = $first;
-   
-    ### Loop through all the days of the month:
-    while ($nday <= $last) {
-      ### Set up blank days for first week of the month:
-      if ($first) {
-        $output .= " <TR><TD COLSPAN=\"$first\">&nbsp</TD>\n";
-        $first = 0;
-      }
-        
-      ### Start every week on a new line:
-      if ($sday == 0) $output .=  " <TR>\n";
-    
-      ### Print one cell:
-      $date = mktime(24, 0, 0, $month, $nday, $year);
-      if ($nday == $day) $output .= "  <TD ALIGN=\"center\"><SMALL><B>$nday</B></SMALL></TD>\n";
-      else if ($date > time()) $output .= "  <TD ALIGN=\"center\"><SMALL>$nday</SMALL></TD>\n";
-      else $output .= "  <TD ALIGN=\"center\"><SMALL><A HREF=\"$PHP_SELF?date=$date\" STYLE=\"text-decoration: none;\">$nday</A></SMALL></TD>\n";
-     
-      ### Start every week on a new line:
-      if ($sday == 6) $output .=  " </TR>\n";
-        
-      ### Update temporary variables:
-      $sday++;
-      $sday = $sday % 7;
-      $nday++;
-    }
-    
-    ### Complete the calendar:
-    if ($sday) {
-      $end = 7 - $sday;
-      $output .= "  <TD COLSPAN=\"$end\">&nbsp;</TD>\n </TR>\n";
-    }
-    $output .= "</TABLE>\n\n";
-
-    ### Return calendar:
-    return $output;
-  }
-}
-
-?>