Add +git suffix to version macro

Signed-off-by: Frank Terbeck <ft@bewatermyfriend.org>
Add support for PUBLISHER tag

Signed-off-by: Frank Terbeck <ft@bewatermyfriend.org>
Add support for DESCRIPTION tag

Signed-off-by: Frank Terbeck <ft@bewatermyfriend.org>
Forgot to add set support for DESCRIPTION and PUBLISHER

Signed-off-by: Frank Terbeck <ft@bewatermyfriend.org>
Add support for URL tag

Signed-off-by: Frank Terbeck <ft@bewatermyfriend.org>
Forgot to add the new tags to ‘taglib_amded_map’

Signed-off-by: Frank Terbeck <ft@bewatermyfriend.org>