Fixed non english file names generation

[livingroot]

What does it do ?

replaced SplFileInfo::getBasename() calls with SplFileInfo::getFilename()

Why is it needed ?

1. If yaml file name starts with non-english characters, gitify build removed those files.

Example:

$file = new SplFileInfo("directory/файл.txt"); // file, which contains cyrillic characters
var_dump($file->getBasename());
var_dump($file->getFilename());

output:

string(4) ".txt" // wrong
string(12) "файл.txt" // correct

Related issue: #188