Update depend list for atom-shell-0.16.2
Fix error:
/usr/bin/x86_64-pc-linux-gnu-ld: warning: libcap.so.2, needed by /var/tmp/portage/dev-util/atom-shell-0.16.2/work/atom-shell-0.16.2/vendor/brightray/vendor/download/libchromiumcontent/Release/libchromiumcontent.so, not found (try using -rpath or -rpath-link)
Merge pull request #20 from w1r0x/libcap-depend

Update depend list for atom-shell-0.16.2