When I finally found the mistake, it turned out to be a way they fetched mysql query results. They were trying to fetch row as assoc array and assume it works. They were wrong. I sent them fix, they thanked me and we all will live happily ever after. But just in case someone has had or will have the same issue, here is a fool proof example of php mysql query fetching one or more rows, that will work:

<?php
$sql = "SELECT id FROM users WHERE name='$first_name'";
$result = mysql_query($sql);
if ($result && mysql_num_rows($result)==1) {
  $row = mysql_fetch_row ($result);
  $id = $row[0];
} elseif ($result && mysql_num_rows($result)>1) {
  while($row = mysql_fetch_array($result)) {
    $id = $row[0];
  }
}
?>

Type the following command in terminal:

gconftool -s /system/indicator/me/display --type int 0

If you want to restore it, use this command::

gconftool -s /system/indicator/me/display --type int 1

If it fails, use dconf:

1) Instal it using sudo apt-get install dconf-tools

2) Remove username dconf write /apps/indicator-session/user-show-menu false

3) Log out and log in

When a new mail has arrived in your inbox a small window will pop up, showing author and subject of the newest mail. The underlined link will take you right to your inbox (using your preferred browser).

It also provides some additional features such as audio notification and support for LEDs on notebooks and multimedia keyboards.

Find KGmailNotifier in Ubuntu Software Centre.

Visit Developers website.

Even though new Ubuntu versions will switch your touchpad off while your typing automatically, this is still a great tool to control touchpad status from indicator.

Get it from ppa:atareao/atareao and install package touchpad-indicator

Visit Developers website.

Provides a simple way to get a classic GNOME-style application menu for those who prefer this over the Unity dash menu.

Various installation methods described at Developers website.