v2.37-Dual-Screen.rc2

• FEC-3957 - Validate base scenario for dual stream player
  OSMF-HLS fix: in order to improve performance, the slave video will be always loaded using the lower bitrate.
  Only master video is implementing the adaptive bitrate logic for now.
• FEC-3238 - Support dual stream playback engine for lecture capture dual screen display
  Fixed temporary state of streamSelector in order to support full backward compatibility.
  All old configurations should work now (including IE7 and IE8).
  The current configuration of the plugin should include only dualScreen declaration:
  "dualScreen": { plugin: true }
  In the cases of presentation with more than one video user should add streamSelector as additional plugin:
  "dualScreen": { plugin: true }, "streamSelector": { plugin: false }
• New HLS plugin from disableAutoDynamicStreamSwitch branch