added section about tracked v untracked resources
Fix some typos in Archetype developer guide
Merge pull request #109 from gonuke/arch_typos

Fix some typos in Archetype developer guide
Adding first files for developer tutorial
Add git commit best practice
Merge pull request #110 from gonuke/anl_tutorial

Adding first files for developer tutorial
Merge branch 'source' of github.com:cyclus/cyclus.github.com into source