shortenIfName: don't lowercase "AC-in" port
omit password hash values from HTML

The local user accounts management form used to use password hash value
to indicate that there is no change to the password. Stephan Rickauer
points that exposing the hash value isn't good with the rainbow tables
attack in mind. Use an empty string for that purpose instead.

* renderUserListEditor()
* updateUser()
bugfix: properly format comment text for racks

renderRackInfoPortlet(): print [multi-line] comment inside respective
  DIV, not as plain text.
improve previous commit: also fix locations
Fix UI reset after MGMT_PROTOS change in 0.20.6

In 0.20.6 TELNET_OBJS_LISTSRC, SSH_OBJS_LISTSRC, and RDP_OBJS_LISTSRC
were replaced with a single MGMT_PROTOS option, but the UI reset code
was not updated and so still attempted to reset the objects which no
longer existed...
Update auth.php with LDAP option to specify port

We use Zentyal which used different port for LDAP read only queries, by default on port 390.

Below example configrarion, hope someone will find it helpful someday. Remember to adjust to your needs.

$LDAP_options = array
(
	'server' => 'zentyal-dc.example.com',
	'port' => 390,
	'domain' => '',
	'search_attr' => 'uid',
	'search_dn' => 'dc=dir,dc=example,dc=com',
 // The following credentials will be used when searching for the user's DN:
	'search_bind_rdn' => 'cn=zentyalro,dc=dir,dc=xstream,dc=dk',
	'search_bind_password' => 'enter_pass_here',
	'displayname_attrs' => 'cn',
	'options' => array (LDAP_OPT_PROTOCOL_VERSION => 3),
	'use_tls' => 0,         // 0 == don't attempt, 1 == attempt, 2 == require
);
finalize the previous change
Update README with nginx and php5-fpm conf

I've been using Debian 7 and nginx + php5-fpm since December 2013 and
haven't noticed any issues.

The only thing that has noticeable impact is php scipt caching on nginx
side, but then admin makes it on purpose. By default this feature is not
enabled, but I've decided to add some info about it.

Added extra info for server_name variable for nginx, apparently this
surfaced after update from 0.20.6 to 0.20.7.
bugfix: renderCellList: $celllist was ignored
string_insert_hrefs: fix PHP<5.3.0 incompatibility

this fixes the #1195 issue