Release 1.2.0

• add trimmedHeight for domRenderer (f2de5f6)
• prep for 1.2 renderer (55217af)
• remove default true for setProperty as domExpressions sets true as value (7f39054)
• refactor(focus): split propagateKeyPress into phase helpers (#19) (9b1db78)
• refactor(core): dedupe shader-write tail and tighten elementNode exports (#18) (1873aef)
• refactor(core): small cleanups (isFunction, _queueDelete, isDomRendererActive) (#17) (bfd38ff)
• refactor(core): collapse activeElement & focusManager indirection (#16) (4abef56)
• clean up of activeElement (8ec4218)
• cleanup from moving core in (f4c9d5a)