add crc32 check
add UNDEFINED_KEY in io&resumable_io
fix
p_query
add Mac & update GetPolicy
fix test
update PutPolicy
update fop
travis
update doc
fix
add Mac & update GetPolicy
fix test
update PutPolicy
travis
update doc
fix
fix demo & test
Merge branch 'develop' into feature/1.0.2&1.0.1
remove unused code