[Area Triggers and Actions] light_action throws exceptions

[theiding]

light_action throws exceptions in two cases: 1) When a lux item is configured, but the lux item returns NULL an AttributeError is thrown 2) When no "low_lux_trigger" is configured on the item or area_triggers_and_actions_dict level then a KeyError is thrown

Desired behavior: For 1) When a lux item returns NULL, no AttributeError should be logged and the reading should be treated as if it reported a lux level below the lux threshold. A warning should be logged that the lux item reported NULL. For 2) When no "low_lux_trigger" is configured no KeyError should be logged and low_lux_trigger should default to infinity (i.e. all lux readings would be considered to be below the threshold). If lux_item_name is configured a warning should be logged that a lux item is configured without a low_lux_trigger.

• Jython version: 2.7.0 standalone
• openHAB version: 2.5.6-SNAPSHOT

[theiding]

Fix is of course trivial and I have the code available. Happy to submit the PR.

[5iver]

1 and 2 are both resolved in #361.