Merge "Add Utils.equalsIgnoreCase methods"

java/proguard.flags

java/src/com/android/inputmethod/latin/AutoCorrection.java

java/src/com/android/inputmethod/latin/BinaryDictionary.java

java/src/com/android/inputmethod/latin/Dictionary.java

...c/com/android/inputmethod/latin/ExpandableDictionary.java

java/src/com/android/inputmethod/latin/Suggest.java

java/src/com/android/inputmethod/latin/Utils.java