Merge pull request #332 from zivchang/next

[notification] implementation update
[Contact] Added 'instanceof' checking and fixed the TypeMismatchError issue.

* [NABI-RSA] TDIS-5814, TDIS-7140
Merge pull request #333 from wcwang/next

[Contact] Added 'instanceof' checking
bug fix:
TDIS-7224: don't return unnecessary null
TDIS-7225: limit the range of listenID
[typecoerce] add "unsigned long" type conversion

apply W3C WebIDL "unsigned long" type conversion algorithm