Fixed: Awstats addon uninstaller fails in case the cache directory contain a directory

    [feedquote='i-MSCP Github (stable) (nuxwin)','https://github.com/i-MSCP/imscp/commit/487886cde7e85be3aaecff1e48f017a277a6620d']

    Code
    1. Fixed: Awstats addon uninstaller fails in case the cache directory contain a directory
    2. Updated: Plugin API to version 0.2.8 (changes are backward compatible)
    3. Small fixes

    [/feedquote]