* Use correct copyright years.
Also include the start year.
* Improve copyright notices.
Use the proper start year instead of just 2018.
Add the right owner Draios dba Sysdig.
Add copyright notices to some files that were missing them.
Replace references to GNU Public License to Apache license in:
- COPYING file
- README
- all source code below falco
- rules files
- rules and code below test directory
- code below falco directory
- entrypoint for docker containers (but not the Dockerfiles)
I didn't generally add copyright notices to all the examples files, as
they aren't core falco. If they did refer to the gpl I changed them to
apache.
New tests that test every possible override:
- Overriding a rule with one that doesn't match
- Overriding a macro to one that doesn't match
- Overriding a top level list to a binary that doesn't match
- Overriding an embedded list to one that doesn't match
In each case, the override results in no longer matching an open by the
program "cat".
