Fixed Sample Song Issue

Fixed the issue with Sample Song not loaded correctly. Now it works like
it was loaded like any other song.
Updated my scene - NOW WORKING.
Updated color-height fragment shader

The shader now looks a bit more cheeful.  Additionally, green color
strips exist based on simplex noise of the position of each fragment.
This breaks up the blue and I like it.
Merge remote-tracking branch 'origin/dev' into gh-pages
Modified UI

Removed stop button, now only two buttons (play and pause). Put a
SongQueue icon on the modal handle and removed SongQueue title. Made
some css effects changes, no highlight on sliders so the highlight does
not show.
Added Icon Images

Added Icon images for the Play, Pause, Next, and Previous button. These
will scale and look better on different size screens than text (or
should at least).
Fixed Bug in SongQueue slide

Fixed a bug in the SongQueue slide that would cause the handle to
disappear after a couple of clicks. Also forgot to upload this file to
toggle visibility of the play/pause button based on if a song is
playing...
Added playAfterStop and stopAfterPlay events

Use these to handle setting buttons visible / invisible.  Instead of
toggling the state of play/pause, just have two functions, one does
setPause, the other does setPlay.
Added time uniform to fragment shader

The time uniform allows the color of the material to change over time.
We can create a loop of colors based on a sin function of time.  The
amplitude of this can be changed, as well as the speed at which it
changes.  This technique will be vital to creating beautiful, dynamic
colors in all scenes.
Merge remote-tracking branch 'origin/dev' into gh-pages