ENYO-719: transitionFinished() is not called when panel is changed with ...

...pushPanel() when animate is false

### Issue:
Apps are overriding transitionFinished function to do something after indexChanged (animation finished).
But, this function is only called when animate is true.

### Fix:
Adding !this.animate condition on finishTransition to change method from updatePanel to transitionFinished when animate is false.

DCO-1.1-Signed-Off-By: Kunmyon Choi kunmyon.choi@lge.com