*** Reason for rollback ***
Roll back US Spanish import because it made the build too big.
*** Original change description ***
Import US Spanish translations, and a few Japanese changes.
Automated import of CL 144355
The empty space on right end sometimes registers as the word at the left end. Fixed this by checking for -1.
Also fixed a bug where the strip moves in the wrong direction on drag, when it shouldn't move at all.
BUG=1743137
Automated import of CL 143728
Changed the tree structure to have variable length nodes to save an average of 21% on the dictionary size.
Created a shortened English dictionary for Dream - 50K words.
Added a shortened Spanish dictionary for Dream - 32K words.
BUG=1743626
Automated import of CL 143472
