Overide of public static methods

[Ap.Muthu]

http://stackoverflow.com/questions/13174343/overriding-static-methods-in-php

The file extensions/text_ui/include/sql_queries.php contains a class that
extends the invoice class and tries to override a public static function in
the latter and it fails.

When the text_ui extension is registered and enabled, no display occurs.
We need to suppress the creation and use of public static methods soon to
prevent such stumbles.

Regards,
Ap.Muthu

[Ap.Muthu]

Fixed in commit:

https://github.com/apmuthu/simpleinvoices/commit/8b5736857d5c3c26f3518ee7b448a27eda7cf556

[Justin Kelly]

Thanks