init project
 * add default library. (cache, func)
DMCSHD-28 add subscribe API
DMCSHD-28 fixed bug of subscribe api
DMCSHD-28 add notify, event API
Merge branch 'feature/notify' into develop
DMCSHD-28 fixed bug of subscribe api
DMCSHD-28 add notify, event API
DMCSHD-28 add monitor script and sample page.
DMCSHD-28 add extention for cache directory.
DMCSHD-28 init cache directory
update README.md