Makes the user/contacts dictionary lookup faster. This is necessary because
there's more in these dictionaries now and it's written in Java.
Fix an auto-caps issue when moving the cursor. And do it a little lazily.
Fixed a bug that was causing user dictionary words to get a much
higher weightage than the main dictionary.
First pass at automatically adding new words that the user types and deliberately
accepts.
After typing the word 4 times, the word gets promoted to being valid.
After typing the word 7 times, the word gets added into the UserDictionary and can
be removed from the UserDictionary Settings UI.
Also add a second row of symbols to the period popup.