v2.4.2
tools: update the .gitignore
tools: fix a problem with distcheck
api: Add support for SCMP_ACT_KILL_PROCESS
api: stop defining __NR_x values for syscalls that don't exist
tools: add a new tool to detect the current API level
all: update my email address
arch: Add parisc architecture support
tools: ensure a bpf file is specified on the command line