move focus by key arrows only to focusable controls
fixed controls removing from Container
fixed log output for strings containing '%'
Moved AnimationTarget::getPropertyId to a protected function so that devs can make their own Property IDs, or use the existing ones
Merge pull request #1131 from reven86/next-clean

Bugfixes
Merge pull request #1141 from rcmaniac25/helpful-additions-animation_property_id

Customizable Animation properties