reflect requirements from install.md also in install.txt

INSTALL.txt

@@ -32,8 +32,7 @@ link if your cert is self-signed).
 	- Apache with mod-rewrite enabled and "Options All" so you can use a 
 local .htaccess file
 
-	- PHP 5.2+. The later the better. PHP 5.3 is required for communications 
-with the Diaspora network and improved security.
+	- PHP 5.4+.
 
 		- PHP *command line* access with register_argc_argv set to true in the 
 php.ini file [or see 'poormancron' in section 8]
@@ -42,7 +41,7 @@ php.ini file [or see 'poormancron' in section 8]
 
 		- some form of email server or email gateway such that PHP mail() works
 
-	- Mysql 5.x
+	- Mysql 5.5.3+ or an equivalant alternative for MySQL (MariaDB, Percona Server etc.)
 
 	- ability to schedule jobs with cron (Linux/Mac) or Scheduled Tasks
 (Windows) [Note: other options are presented in Section 8 of this document]