rename is_new -> is_reagl & set appropiate flags for newer devices,
rename is_new -> is_reagl & set appropiate flags for newer devices,

leave Cervantes2013 as an old device for now, it doesn't hurt since it is what stock reader is doing

NiLuJe/koreader-base,houqp/koreader-base,houqp/koreader-base,koreader/koreader-base,houqp/koreader-base,Frenzie/koreader-base,Frenzie/koreader-base,NiLuJe/koreader-base,koreader/koreader-base,NiLuJe/koreader-base,koreader/koreader-base,houqp/koreader-base,Frenzie/koreader-base,NiLuJe/koreader-base,koreader/koreader-base,Frenzie/koreader-base