Added the middle dot (·) to the Spanish keyboard, in order to be able to type
Catalan words and names. Catalan is spoken in Eastern Spain, and the middle top
is therefore included in standard PC Spanish keyboards.
Also changed the Tab key to an upwards-leftwards swipe, as to follow more closely
the programmer's layout qwerty.xml
This is only to make this layout more similar to the default English layout.
Macrons are not actually used in any language spoken in Spain, but they
appear to be used in some varieties of Nahuatl?
Also added C-cedilla to the N-tilde key. Even if both C-cedilla and N-tilde
are redundant in this keyboard, both letters are a staple of Spain keyboards,
and Spaniards are used to have a dedicated key for C-cedilla in PC keyboards.
