crash! macros
use crash! macro in echo
Implement seq

Fixes #81
Merge pull request #82 from dmac/seq

Implement seq
Added truncate
Handle lowercase letters
Properly support --no-create for truncate
Removed truncate from the to-do list
Changed truncate to use multi-line println!
truncate: added simple tests
Update for latest Rust
Merge pull request #69 from Heather/master

Important changes! [ Mostly due language Syntax changes ]
wc: fix for latest Rust when applied with @Heather's fix
mkdir: add -V option
cat: fix tests
Merge pull request #77 from Arcterus/master

Update most utilities for latest Rust
Merge pull request #84 from Arcterus/fix-cat-tests

cat: fix tests
Merge pull request #73 from Arcterus/truncate

Added truncate
Fix typo in README