fix #1728 valve and battery error

addition to fix #1793, regarding BindingType.VALVE and BindingType.BATTERY:
BindingType.VALVE still has been updated with wrong value in line 295
BindingType.BATTERY also, if  device.isBatteryLowUpdated() was false
Merge pull request #1812 from polarvogel/patch-1

[Maxcube] fix #1728 valve and battery error
Add HEM
Update Aeon product codes
Merge branch 'zwave-dbs_update' into zwave-initialisation

* zwave-dbs_update:
  Update Aeon product codes
  Add HEM

Conflicts:
	bundles/binding/org.openhab.binding.zwave/database/aeon/hem.xml
Update HEM
Bounds check battery level
Merge branch 'zwave-battery_low' into zwave-initialisation

* zwave-battery_low:
  Bounds check battery level
  fix #1728 valve and battery error

Conflicts:
	bundles/binding/org.openhab.binding.zwave/src/main/java/org/openhab/binding/zwave/internal/protocol/commandclass/ZWaveBatteryCommandClass.java
Add low battery indicator
Make sure converterHandler is initialised before creating polling list