Fix on screen display of nested enumerations in Spanish and Galician

Fix on screen display of nested enumerations in Spanish and Galician

This is an old bug report from 2009 that I stumbled upon while cleaning my mailbox:
http://www.mail-archive.com/lyx-users@lists.lyx.org/msg74832.html

It seems that the proposed fix never got applied: translate properly enumii/enumiii/enumiv in es.po.

After checking in babel sources which packages changes the enum* counters, I did the same thing to gl.po