[pushbullet] Backward 1.x compatibility issue with broadcast notifications

[jsetton]

Expected Behavior

In the Pushbullet 1.x binding, notifications could be broadcast to all the devices of a given account by calling the action method with a title and message.

Current Behavior

While testing the new binding introduced in #5668, this functionality isn't working anymore. It seems that now a recipient is always needed. So, when calling the action with two parameters, the recipient would be set with the title causing the notification being sent out to miss that information.

Steps to Reproduce

Rule

val actions = getActions("pushbullet", "pushbullet:bot:default")
actions.sendPushbulletNote("Test Notification", "Test 2.x")

Logs

2019-08-22 17:54:12.365 [DEBUG] [t.internal.handler.PushbulletHandler] - sendPush is called for
2019-08-22 17:54:12.365 [DEBUG] [t.internal.handler.PushbulletHandler] - Thing org.eclipse.smarthome.core.thing.internal.ThingImpl@6f24a793
2019-08-22 17:54:12.366 [DEBUG] [t.internal.handler.PushbulletHandler] - Thing Label: 'Pushbullet Default Bot'
2019-08-22 17:54:12.366 [DEBUG] [t.internal.handler.PushbulletHandler] - CFG org.openhab.binding.pushbullet.internal.PushbulletConfiguration@176fd872
2019-08-22 17:54:12.366 [DEBUG] [t.internal.handler.PushbulletHandler] - Headers: {Content-Type=application/json, User-Agent=openHAB / Pushbullet binding 2.5.0.201908182253, Access-Token=xxxxxxxxxx}
2019-08-22 17:54:12.366 [DEBUG] [t.internal.handler.PushbulletHandler] - Recipient is 'Test Notification'
2019-08-22 17:54:12.367 [DEBUG] [t.internal.handler.PushbulletHandler] - Title is     ''
2019-08-22 17:54:12.367 [DEBUG] [t.internal.handler.PushbulletHandler] - Message is   'Test 2.x'
2019-08-22 17:54:12.367 [WARN ] [t.internal.handler.PushbulletHandler] - Invalid recipient: Test Notification
2019-08-22 17:54:12.367 [WARN ] [t.internal.handler.PushbulletHandler] - Message will be broadcast to all user's devices.
2019-08-22 17:54:12.368 [DEBUG] [t.internal.handler.PushbulletHandler] - Push: Push {title='', body='Test 2.x', type='note', email='null', channelTag='null'}
2019-08-22 17:54:12.368 [DEBUG] [t.internal.handler.PushbulletHandler] - Packed Request: {"title":"","body":"Test 2.x","type":"note"}

[hmerk]

closed due to inactivity