Update assets for LatinIME

...s/drawable-hdpi/btn_keyboard_key_light_popup_normal.9.png

java/res/drawable-hdpi/btn_keyboard_key_light_pressed.9.png

java/res/drawable-hdpi/cancel.png

java/res/drawable-hdpi/candidate_feedback_background.9.png

java/res/drawable-hdpi/caution.png

java/res/drawable-hdpi/dialog_bubble_step02.9.png

java/res/drawable-hdpi/dialog_bubble_step07.9.png

java/res/drawable-hdpi/ic_dialog_keyboard.png

java/res/drawable-hdpi/ic_subtype_keyboard.png

java/res/drawable-hdpi/keyboard_background.9.png

java/res/drawable-hdpi/keyboard_dark_background.9.png

.../res/drawable-hdpi/keyboard_key_feedback_background.9.png

...drawable-hdpi/keyboard_key_feedback_more_background.9.png

java/res/drawable-hdpi/keyboard_suggest_strip.9.png

java/res/drawable-hdpi/mic_slash.png

java/res/drawable-hdpi/ok_cancel.png

java/res/drawable-hdpi/speak_now_level0.png

java/res/drawable-hdpi/speak_now_level1.png

java/res/drawable-hdpi/speak_now_level2.png

java/res/drawable-hdpi/speak_now_level3.png