Add: [crypto] crypto.random() to get crypto-secure random string from OS-dependent source.
Add: [binary] hex codec, export of functions.
Fix: [hex] decoding a lowercase string.
Minor fix: [crypto] crypto.random().
Update: according to the current Dao.
Fix: double leftovers, use of daoint;
Add: [binary] getting/setting quad words;
Change: [time] time.diff() to return seconds as int;
Change: [os.fs] file size always 64-bit.
Fix: [binary] use of float.
Change: [time] minor changes.
Fix: [time] prevent calling mktime() for UTC time.
Add: [time] adding seconds to a time.
Update: for 64 bit int and float types.