doc update

plugins/change_password/README

@@ -21,7 +21,8 @@ REQUIREMENTS:
 - poppass backend needs poppassd server that supports authentication
   used by imap server.
 - vmailmgrd backend needs vmailmgr php library (vmail.inc) and
-  vmailmgrd service running on tcp port or unix socket.
+  vmailmgrd service running on tcp port or unix socket. It also 
+  requires SquirrelMail 1.4.4 or 1.5.1.
 
 CONFIGURATION
 Edit the file config.php to set the backend you want to use.
@@ -147,23 +148,25 @@ ABOUT LDAP BACKEND
     backend supports:
     - md5 - used name 'md5'. Implemented in standard php functions.
     - smd5 - used name 'smd5'. Implemented in php mhash extension functions. 
-      Minimal php version 4.0.4.
-    - sha - used name 'sha'. Implemented in php mhash extension functions.
-    - ssha - used name 'ssha'. Implemeted in php mhash extension functions.
-      Minimal php version 4.0.4.
+      Minimal php version = 4.0.4.
+    - sha - used name 'sha'. Implemented in php mhash extension functions 
+      and php 4.3.0+ sha1() function. mhash extension is used only wheh 
+      sha1() function is unavailable.
+    - ssha - used name 'ssha'. Implemented in php mhash extension functions.
+      Minimal php version = 4.0.4.
     - md5 crypt - used name 'md5crypt'. Uses php crypt function. Depends on
       md5 support in system crypt libraries. Should work on linux glibc2 systems
       and bsd systems.
-    - blowfish crypt - used name 'blowfish' Uses php crypt function. Depends on
+    - blowfish crypt - used name 'blowfish'. Uses php crypt function. Depends on
       blowfish support in system crypt libraries. Should work on bsd systems. 
-      Is not supported by glibc 2.3.2.
+      Is not supported by glibc 2.3.2. (Tested on OpenBSD 3.5)
     - extended des crypt - used name 'extcrypt'. Uses php crypt function. Depends on
       extended des support in system crypt libraries. Should work on bsd systems.
-      Is not supported by glibc 2.3.2.
+      Is not supported by glibc 2.3.2. (Tested on OpenBSD 3.5)
     - standard des crypt - used name 'crypt'. Uses php crypt function. Depends on
       standard des support in system crypt libraries. Should work on libc systems
       and bsd systems.
-    - plain text passwords - used name 'plaintext'
+    - plain text passwords - used name 'plaintext'.
 
     If you use admindn, plugin should support all encryption/hashing 
     algorithms used in your ldap server.
@@ -187,7 +190,7 @@ ABOUT LDAP BACKEND
       server supports sha, ssha or smd5 and mhash extension is not 
       present.
 
-  Example:
+  Configuration example:
   $cpw_ldap['base_dn']='ou=users,dc=example,dc=com'; // sets base dn
   $cpw_ldap['connect_opts']['PROTOCOL_VERSION']=3;   // forces v3 bind protocol