set(.. "force")

Ensure that base is an object with force
HTMLElement make stateful flag

+ tests for other smart flags
less macro

.rotateY
custom tracking for desc

context.placement.setTrack(..)

layout.style...
desc.sizing.currentStyle

just like with layout
disable live reload in dev
IE10 mode in IE11
updateContext for enhanced elements without instance/controller

probably not real case but current test fails and easy to fix
desc.setInstance

support using existing instance rather than enhance handler
EnhancedDescriptor.get

alternative to just calling EnhancedDescriptor
DescriptorQuery("[attr=value]",el)