buttonview fix, imageview fix
correctly set device.width, device.screen.width for canvas
refactor setImage for ui.ImageScaleView
Merge pull request #8 from gameclosure/fix-canvas-viewport-width

Fixes for doc integration
instantiate image if typeof img=='string'
(fixed slider and more)
arno's gridview padding fix
Merge pull request #13 from gameclosure/fix-scale-view-image

instantiate image if typeof img=='string'
Merge pull request #14 from gameclosure/fix-grid

arno's gridview padding fix
state is also accepted in opts
Merge pull request #15 from gameclosure/fix-buttonview-state

state is also accepted in opts
added isRunning to engine
Merge pull request #18 from gameclosure/feature-is-running

added isRunning to engine
IE9 compatibility for ui.View
muted state has no effect until sound is playing (at least in Chrome), so reset it on play
Merge branch 'develop' of https://github.com/gameclosure/timestep-priv into develop

* 'develop' of https://github.com/gameclosure/timestep-priv:
  added isRunning to engine
  state is also accepted in opts
  arno's gridview padding fix
  instantiate image if typeof img=='string' (fixed slider and more)
  refactor setImage for ui.ImageScaleView
  correctly set device.width, device.screen.width for canvas
  buttonview fix, imageview fix