* Add threading support to SGX Avian.
* Handle contract verification exceptions using uncaught exception handler.
* Indent uniformly to 4 spaces.
* Add comments for some of the uses of SGX synchronisation primitives.
* ENT-1188 - Remove unused scripts and dependencies
* ENT-1188 - Update references to removed scripts
* ENT-1188 - Clean up Makefile for container build of SGX JVM
* ENT-1188 - Group udev rules into separate folder
* ENT-1188 - Remove old references to dependencies folder