The purpose of 2.5 version is to fix Pektsekye's issue with the uninstall.xml write permissions.

This fix is very important because next install steps will ask you to set write permissions to several existing files and directories. After you set the write permissions and click retry if uninstall.xml is not writable autoinstaller will add the code again to the already changed existing files which makes syntax errors.

Added write permission warning if backup directory is not writable to prevent possible unwanted overwrite of your files. In the 2.4 version of this uninstaller if backup directory is not writable your files are not saved as backup as Pektsekye says in his readme file.

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