accept non-string content and convert to utf8 string
accept non-string content and convert to utf8 string

Visya/libxmljs,isaacs/libxmljs,isaacs/libxmljs,gagern/libxmljs,Konsus/libxml,improvisio-software/libxmljs,sergeche/libxmljs,CodeFridge/libxmljs_mem,isaacs/libxmljs,polotek/libxmljs,CodeFridge/libxmljs_mem,hildjj/libxmljs,apeace/libxmljs,improvisio-software/libxmljs,libxmljs/libxmljs,CodeFridge/libxmljs_mem,gagern/libxmljs,libxmljs/libxmljs,rchipka/libxmljs,libxmljs/libxmljs,Konsus/libxml,gagern/libxmljs,polotek/libxmljs,Visya/libxmljs,Visya/libxmljs,rchipka/libxmljs,sergeche/libxmljs,Konsus/libxml,rc0x03/libxmljs,apeace/libxmljs,hildjj/libxmljs,isaacs/libxmljs,improvisio-software/libxmljs,rc0x03/libxmljs,hildjj/libxmljs,sergeche/libxmljs,polotek/libxmljs,rchipka/libxmljs,rc0x03/libxmljs