add mcs1, mcs2, mpp to list of pretaggable extag tags
add mcs1, mcs2, mpp to list of pretaggable extag tags

longnow/panlex-tools,longnow/panlex-tools,longnow/panlex-tools,longnow/panlex-tools,longnow/panlex-tools,longnow/panlex-tools,longnow/panlex-tools