Fix bug that prevented single project users from creating a res.

Who are these single project people and are their lives worth living?

www/aptui/reserve.php

@@ -125,9 +125,8 @@ $defaults["pid"]   = '';
 if (ISADMIN() && isset($project)) {
     $defaults["pid"]   = $project->pid();
 }
-elseif (count($projlist) == 1) {
-    list($project, $grouplist) = each($projlist);
-    $defaults["pid"] = $project;
+elseif (count($plist) == 1) {
+    $defaults["pid"] = $plist[0];
 }
 echo "<script type='text/plain' id='form-json'>\n";
 echo htmlentities(json_encode($defaults)) . "\n";