typo in comments
add Bytes helper on crypto struct
working on storage
set DefaultStorage in memory and add specific error.
begin to incorpore crypto in handlers.

remove all default instances.
update struct KeyStorage to manage key's name
begin to write tool : keytool
Work on keytool and rename name field to note.
Now use /dev/random for key generation on unix
add copyright header
remove useless import
gofmt
Added packet encryption (+ gofmt)