v3.3.10
license: update FSF addresses
docs: remove old information from HACKING
ps: exploit library systemd support vs. internal logic
ps: add -q/q/--quick-pid option
Also emulate error_at_line if not present
ps: clarify which options depend on systemd in man doc
procps 010114
docs: clarification to license headers in files
ps: cut out code unused code