(devanagari): Add OTF script tag "dev2".
(devanagari): Add OTF script tag "dev2".

xmirror/m17n-db,sanskrit-coders/m17n-db,sanskrit-coders/m17n-db,xmirror/m17n-db,xmirror/m17n-db,xmirror/m17n-db,sanskrit-coders/m17n-db