merge bugfixes from release '2.0.0'

Release 2.0.0

* tag '2.0.0':
  contrib: rebranding
  video_input: don't satisfy the decOpts promise twice
  daemon: fix config.h inclusion
  daemon: fix libav contrib options order
  daemon: include config.h in configurationmanager
  daemon: remove sfl references in bin/
  video: add switching input for osx
  daemon: cleanup for release
  daemon: remove plugins dir
  daemon: remove SFL reference from globals.mak
  daemon: replace SFL references by Ring in src/
  daemon: cleanup useless code
  sips/ice: fix packet crop
  opendht: bump version
  ringdht: generate identity when setting account details
  sips/ice: send packets to pjsip from main thread

Change-Id: I1f94ddb603e0c2d8f982ba5292bb4562d8d82e91