Extension talk:BizzWiki/lessons

Documentation

 * 1) Forgot to mention *nix file permissions adjustment in documentation
 * 2) Did not stress strongly enough that the BizzWiki package must be uncompressed in the root directory of the MediaWiki installation

PHP related

 * 1) Some PHP version do not like a static method to be called before class declaration (in the same file)
 * 2) There seems to be different behavior for the 'dir' function when no entries/non-existing directory