Check return code for InitHash in chewing_new
Clean up #if 0/#endif code sections

 - It's time to release souls from purgatory, those
   code are hold at least 3 years ago...
Clean up sizeof(char) since it's always 1 by ANSI C standards.
Add ueConstStrSeek for seek const utf-8 string
Add const as possible
Eliminate the warnings for different sign and unused arguments.
Refine SetUpdatePhraseMsg
Refine DACHENCP26PhoInput
Move CEIL_DIV to private.h
Merge pull request #58 from kito-cheng/master

Clean up and refactor