Updating Release Notes and Roadmap
Adding Go Template Tutorial
Minor Docs Tweaks
Adding Documentation on Hugo Template Functions
Adding Documentation on using Syntax Highlighting
Fix build
Call the json delimiter 'json_lead' instead of 'java_lead'
Make the invalid date/time format error message more helpful
Support ISO8601 date/time format without timezones
Allow 1/0 for true/false in Yaml front-matter
Make 'read a string' code understand float64 (json) and int (yaml) as well as actual strings
Adding Else If example
Warn about bad shortcode parameters (and don't crash)

closes #193
Adding an introduction to Hugo
Adding documentation on Table of Contents functionality
Adding documentation on Pretty Urls
A bunch of small documentation changes
Fix imports so hugo builds on darwin
Shortcode cleanup. Added a ton of tests. Much more flexible with input. Doesn't crash with bad input. Fixed #193

Also added the .Get function to short codes and documentation for that function.
Reorganization of helpers. Centralized Url/Path logic. Fixed #175.