Merge pull request #4 from opennota/master

Remove blank identifier
don't fail on gone windows
better visual representation for gross time
remove decorations from links
add dump function
add functions list
rename Start to Seen
rename LastSeen to just Seen
make dump writes atomar
add reset function
add logging of passed tasks
change log order for sake of easy parsing
add warning
rename dump.gob to gone.gob and use gone.json as dump url
add xscreensaver caveat
wording
Synchronize accesses to the tracker map