Plugin Disable Change User Name released. 
How to ease manual installation of Joomla with writable configuration.php
If you have no Fantastico available on your host you need to manually install Joomla which is not an issue at all and as simple as anything else (see second part of this manual !) you will get a message during installation that the configuration.php is not writable and the installation process provides you with the entire configuration.php which you have to copy/paste to an editor and upload and name configuration.php to complete installation. This can be avoided.
The extremely simple solution described here avoids mistakes as well!
- upload your core files to the directory of the server where you want to install Joomla
- create an empty configuration.php (notepad > new> give name configuration.php) and upload to same folder do the installation and the configuration.php is now written directly in the file system.
- Make sure the configuration.php is afterwards set to 444 or 644 (not writable) to protect your system
Joomla’s flexibility and ease of usage makes it a popular CMS, which has resulted in a vast community and tons of extensions, only imagination can restrict the use of Joomla. Then why is Joomla sometimes operating with less speed than expected or slow? Joomla itself is not slow, one needs to tweak settings and use the available inbuilt options to boost up performance. Its up to the user to get the maximum out of joomla by tweaking settings and optimizing Joomla framework. Default Joomla has lot of potential to be optimized for speed and performance.
Often people require just a some specific support or just general support in finishing a project or purchase support valid for multiple sites. GWS-Desk provides this ad-hoc support on non Joomla core issues where needed. This relates for example to 3rd party software, extension setups and upgrades, etc. This is practical if you do not wish to purchase a support package but need a one-off assist.