v2.1.1

Adrien Cassagne

@kouchy

58c66228 · Replace 'development' by 'master'. · Dec 06, 2018

Changes listed below.
- Fix a bug in 'mutual_unique' routine
- Improve the documentation: add AVX-512 flags
- Fix an under scope variable bug in the Task class
- Refresh the AFF3CT headers file
- Improve the CI