Id in progress
Merge pull request #62 from alan-andrade/patch-3

Id in progress
update code for Rust print syntax changes
trying to update base64 for print changes
Merge pull request #63 from Heather/master

update code for Rust print syntax changes
- Fix build (removal of .eof() from Reader trait)
add `users` executable.
Add default filename static.
Test if there are users before printing them.
Merge pull request #64 from KokaKiwi/fix-build

Fix build for tee (Reader.eof())
Merge pull request #65 from KokaKiwi/users

Implemented users.
buffread::BufferedReader -> BufferedReader
Merge pull request #66 from Heather/master

buffread::BufferedReader -> BufferedReader
base64/base64.rs: Fix build error with rust-0.10
Merge pull request #68 from nutsi/master

base64/base64.rs: Fix build error with rust-0.10
Fix base64 due to from_utf8 and replace changes

These two changes were made in rust's std lib:
    1. `str::replace` was a method of str, now it's a function.
    2. `from_utf8` now wraps its return value in Option.