Ampoliros 2.7.0 released

This version introduces an automatic database table update system in admin and root table elements.

Change log:

2000 2.7.0 - 2002/07/15 - "Database table update"
-----------------------
NEW FEATURES:
- Added the long awaited table update in admintable.element and
  roottable.element. For now it can add new columns and remove old columns.
- Added CompareVersionNumbers() function in misc.library.
- Added check for Curl extension for SSL support in Xml-Rpc functions.
- Added User::GetGroup() memebr (users.library) to get user group id.
- Added site.user.add, site.user.remove, site.group.add, site.group.remove hooks.
- Added OpenLibrary function (ampoliros.library).

CHANGES:
- Changed version to 2.7 series, due to new table update important feature.
- Changed big logo, added a "2000" string.

FIXES:
- Fixed wrong assignment of site superuser locale settings from
  admin/locale.php.
- Added missing HuiPage::mBorder data member.
- Fixed wrong variable inside single quotes block in xml.library.
- Fixed broken image link in main pages if OEM logo is not enabled.
- Fixed "Invalid Ampoliros database handler" failure when finishing web setup
  phase.
- Added check in RecRemoveDir() (misc.library) in order to verify if the given
  dirname exists.