Adding multilevel buffer management to BufferExtension.js and changes to BufferController.js to support this change.
Removed y-axis max value for chart to allow for autoscaling buffer values.
Added Akamai logo to contributors section of dash player index.
Removed y-axis max value for chart to allow for autoscaling buffer values.
Added Akamai logo to contributors section of dash player index.
Merge branch 'multilevel-buffer' of https://github.com/dsparacio/dash.js into multilevel-buffer