New API in pangomm 1.40

Member Pango::SCRIPT_AHOM
Member Pango::SCRIPT_ANATOLIAN_HIEROGLYPHS
Member Pango::SCRIPT_BASSA_VAH
Member Pango::SCRIPT_CAUCASIAN_ALBANIAN
Member Pango::SCRIPT_DUPLOYAN
Member Pango::SCRIPT_ELBASAN
Member Pango::SCRIPT_GRANTHA
Member Pango::SCRIPT_HATRAN
Member Pango::SCRIPT_KHOJKI
Member Pango::SCRIPT_KHUDAWADI
Member Pango::SCRIPT_LINEAR_A
Member Pango::SCRIPT_MAHAJANI
Member Pango::SCRIPT_MANICHAEAN
Member Pango::SCRIPT_MENDE_KIKAKUI
Member Pango::SCRIPT_MODI
Member Pango::SCRIPT_MRO
Member Pango::SCRIPT_MULTANI
Member Pango::SCRIPT_NABATAEAN
Member Pango::SCRIPT_OLD_HUNGARIAN
Member Pango::SCRIPT_OLD_NORTH_ARABIAN
Member Pango::SCRIPT_OLD_PERMIC
Member Pango::SCRIPT_PAHAWH_HMONG
Member Pango::SCRIPT_PALMYRENE
Member Pango::SCRIPT_PAU_CIN_HAU
Member Pango::SCRIPT_PSALTER_PAHLAVI
Member Pango::SCRIPT_SIDDHAM
Member Pango::SCRIPT_SIGNWRITING
Member Pango::SCRIPT_TIRHUTA
Member Pango::SCRIPT_WARANG_CITI