Add support for Unicode decomposed text in Konsole

Review Request #101721 - Created June 21, 2011 and submitted - Latest diff uploaded

Albert Astals Cid
hein, hindenburg, thiago
If you want to write an e with a ring, as there is no unicode character for it, you have to use e + ring combining character, this patch makes use of the unused/unfinished feature of RE_EXTENDED_CHAR to be able of actually storing more than a quint16 in each position of the terminal without changing the code too much
Played for it for a while, checked i can copy, paste add characters, it's stored in the history, i can have a full terminal with e with ring. Here you have a file few e with ring so you can wget and cat it in the old konsole and see how the ring is missing and see how it works once patched