gettext detection

Problem.
I have CentOS 6. PHP with gettext compiled in.
Plugin not detect ‘gettext’. Buttons disabled.

[SOLUTION]
In class.admin-renderer.php
in function is_native_gettext_available()
change to:

// gettext extension is required
if ( !function_exists('dngettext')) {
    $result = 1;
    return 1;
};

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