fix delPage and merge newPage into newSubpage
fix delPage and merge newPage into newSubpage

kekh/mikidown,kekh/mikidown,ckolumbus/mikidown,ShadowKyogre/mikidown,ckolumbus/mikidown,ShadowKyogre/mikidown,kekh/mikidown,ShadowKyogre/mikidown