Sydbox v2.1.0

I am happy to annouce the release of SydBox-2.1.0. This release has many fixes and some new features. Below you may find information on the recent changes and how to acquire SydBox. Changes sydbox: do not warn when reading /proc/pid/stat returns invalid argument tests: many fixes, add more test coverage sydbox: fix AArch64 compilation and tests sydbox: add many daemon options, such as --user, --group, --background, --nice etc. Read the fine manual for further details.