#190 Change ctrl+arrow key movement

[Joel York]

When using ctrl + the left or right arrow key,
specifically when some alphanum characters are
immediately to the right or left of the cursor,
respectively, the cursor should move to the end of that
group of alphanum characters.
For example:
return (appearance = src);

If the arrow is at the beginning of the word (or
anywhere within the word) appearance, the cursor should
move to the end of the word. Instead, it moves to the
beginning of the word src.

This is normal for other Windows based editors I've used.

Shadowhawk