v02.01.00-alpha.01

update ExoPlayer libraries …

in response to issue #2

the branch 'dev/c516740' was added to update ExoPlayer from: 'dev-v2-rtsp'
which is currently at commit: c516740

problems:

• the core library has been changed A LOT recently
  • this reflects its recent rapid development in the official repo,
    which is currently at commit: 6aa35aa
  • tresvecesseis repo is behind.. though they make a good effort to merge changes pretty often
• the rtsp (and related) library has fallen out of step with the core
  • there are a lot of breaking changes

alpha:

• the core library in tresvecesseis repo could not be used as-is
  • contains broken code
  • I generated a patch file and updated only the core library
    to match the current state of the official repo
• some aspects of this patch needed to be held back
  • eventually, the rtsp (and related) library will need
    to be modified to work with the official core library
  • for the moment, a few minor artifacts that were removed are still present
• there was one fairly major change to the core library
  that I didn't feel would be right to try to roll back,
  so instead I modified the rtsp (and related) library.. slightly
• for more details, see: notes.txt

result:

• everything seems to work as expected
• not sure if there is any improvement over the current stable release: v02.00.00