fix the bug that it will send the 0 size audience array when audience params be set a null string.
fix the bug that registration_id spelling error.
add api doc
update the unit test create json model
add api doc link
add api doc link
refactor the code
refactor the code
add message,notification,options
add payload create json model
add push model
add PushResponse model
add push and report example
add push and proert example
delete nativeHttpClient
add Error model and update example
update notification to be easy use
update notification to be easy use
update notification to be easy use
add new version test
fix the spelling error