Update yard gem
Merge pull request #101 from kerrizor/update-yard-gem

Update yard gem
Fixing small typos
Update copyright in LICENSE
Make LICENSE a markdown file for easier reading online
Merge pull request #102 from kerrizor/fix-typos

Typographical fixes
Use NullObjects to avoid bug where generalized or specialization could be null
Merge pull request #103 from kerrizor/avoid-null-objects-in-sort

Use NullObjects to avoid bug where generalized or specialization could b...