Fix wrong mappings

There are duplicate source with different destinations. This is
proof that the original table has some human-error and it really
needs to be reviewed carefully
+ map for :uoos

This helps to type the acent (s) for Uoo before (new) and after
the end work. Missing this new entry will stop user from typing
Muoosn, Uoos, Uoosn,... ("uoos" will be clear)
+ support capitialized missing entries

The modifiers can be in lowercase/uppercase. I forgot to support the U type
and this patch will fix that
+ missing entries in captitalized form