Separate utility methods from BinaryDictionary.

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

...android/inputmethod/latin/ExpandableBinaryDictionary.java

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

...m/android/inputmethod/latin/makedict/Ver4DictEncoder.java

...utmethod/latin/spellcheck/AndroidSpellCheckerService.java

.../android/inputmethod/latin/utils/AutoCorrectionUtils.java

...ndroid/inputmethod/latin/utils/BinaryDictionaryUtils.java

...i/com_android_inputmethod_latin_BinaryDictionaryUtils.cpp

...roid/inputmethod/latin/BinaryDictionaryDecayingTests.java

.../com/android/inputmethod/latin/BinaryDictionaryTests.java

...tmethod/latin/makedict/BinaryDictDecoderEncoderTests.java

...hod/latin/personalization/UserHistoryDictionaryTests.java

...om/android/inputmethod/latin/utils/EditDistanceTests.java

tools/dicttool/Android.mk