v0.1.3

Install with

curl -sSf https://raw.githubusercontent.com/denoland/deno_install/master/install.py | python

• Fixes module resolution error #645
• Better flag parsing
• lStatSync -> lstatSync
• Added deno.renameSync()
• Added deno.mkdirSync()
• Fix circular dependencies #653
• Added deno.env() and --allow-env