Modify popup.html to add a Pause (replay) button. Modify app.js to add skeleton for isPaused and pause functions. Modify background.js to add a window.pause function. Also modify window.replay function to use original logic from replay listener logic.
Remove isPaused() from buttons in popup.html
begin refactor of player logic to background. player just plays.
Comment out .isPaused
Unfinished work with replay - for Luke
Merge branch 'pause-replay' of https://github.com/fay-jai/klickr-chrome-1 into refining

refactor player to more modular format.  Refactor background listeners for replay and multi-page
create klickQueue, klickQueueBuilder, buildKlick
move getData to background and rename as getKlick

Conflicts:
	popups/app.js
resolve conflicts in popup/app.js