(DAL Backend) very small fix to accommodate to some changes in Orcc
(ActorMerger) Accommodate to changes originating from commit #f06d94f
(ActorMerger) A revert of the previous commit and a nicer solution to the issue
(transformations) Set DfVisitor as the base class of BroadcastAdder and CBroadcastAdder similarly as in commit bda9e9f
(ActorMerger) Major change in code generation for TTA BE compatibility
Two native CPU procedures for streaming from a camera

* `source_camera_init(..)` initialises the camera source and must be
  called first.

* `readCameraFrame(..)` grabs the next complete frame from the camera,
  and writes to R G and B channel 1D arrays to be used by RVC-CAL
  actors. This is similar to how the `outTable` array is modified by
  the native procedure `source_readNBytes(..)` in
  orcc-native/src/source.c .
(editor) Display a message when errors are detected in objects links

Fix #122
(editor) Fix exception in error detection

This is a fixup for c15ea5626b
(orcc-lib) Fix ffmpeg wrapper.
(orcc-lib) Improve FFMPEG wrapper.
(core) Add compatibility patch for future API change
(feature) Remove Xronos from Orcc build

Xronos is now licensed under GPL, but Orcc is still under BSD. These
licences are not compatible, so Orcc releases can't contains Xronos
anymore.
Update all files for 2.1.2 release
(Backends) Improve the CastAdder.
Merge branch '2.1.2_forward_compatibility_patch'

Conflicts:
	CHANGELOG.md
	eclipse/plugins/net.sf.orcc.cal.tests/META-INF/MANIFEST.MF
Revert "(Backends) Improve the CastAdder."

This reverts commit 6bbe3b8e7bbb663f24128138c9d79fa6067d26db.
Print new file "traces.txt" where the names of traces files are set in
couples. to be used later for debugging FIFO status
Merge branch 'master' of https://github.com/orcc/orcc.git
code cleaning
(traces Printer) put source and target files names in the same line for
easier processing with Ruby code later