add support for priority notification and change builder to NotifCompat
add support for priority notification and change builder to NotifCompat

evernym/PushPluginRich,evernym/PushPluginRich,evernym/PushPlugin,evernym/PushPlugin,evernym/PushPluginRich,evernym/PushPlugin,evernym/PushPlugin,evernym/PushPluginRich,evernym/PushPluginRich,evernym/PushPlugin