Fix assert() condition for ChoiceInfoAppendChi()

Signed-off-by: Jim Huang <jserv@0xlab.org>
mod_aux.h: Fix typo in filename declaration

Signed-off-by: Jim Huang <jserv@0xlab.org>
Fix typo in chewing_commit_Check() description

Signed-off-by: Jim Huang <jserv@0xlab.org>
Update contributor list

Added: Hialan Liu and Bo-cheng Jan
Add const qualifier for keybuf[] & chibuf[] in SpecialSymbolInput()
Fix wrd_ptr->word to wrd_ptr->word[0] for Str2Word(), considering type consistency.
Fix redundant pZuin parameters.
Remove redundant candPerPage variable.
Eliminate the warnings
Fix Visual Studio compiling error