Extend disallowSkip option

[mariusbuescher]

This adds the direcitonal skip feature to the player.

[mariusbuescher]

Sorry for the duplicate. My bad.

[rwlodkowski]

@mariusbuescher thanks for that. I think it'll be nice addition to the projekktor functionality. One thing, please push only the relevant changes and remove all the whitespace changes you've done. Thank you.

[rwlodkowski]

And remove console.log :)

[rwlodkowski]

@mariusbuescher there is much more things to do to with that functionality.

Please add relevant changes to:

• setActiveItem and setFrame functions in projekktor.js
• updateDisplay and scrubberdragStartDragListener functions in projekktor.controlbar.js

You should also add comments in projekktor.config.js for that setting.

[mariusbuescher]

I don't think there is a need for implementing the functionality in scrubberdragStartDragListener because it calls a function where the check is done. Also you can only do it after the mouse event is called, so there is not such a big issue on performance here.