Cleaned up; this was the first ruby code I ever wrote 4 years ago
Added
Bringing this gem into the 2010's. Still with oldschool tests though.

New gem spec, rake file, added old tests back in.
Update rdoc syntax; my rdoc foo is white belt.
Fixed typo in Gemfile usage line
Adds formats to to_s. Two initial formats: :line1 and :default
Bumped version.
Updated for to_s formats
Updated version.
Allow zip+4 without dash.  The following are now both valid:
90066-5544
900665544
Adds informal/looser parsing option
Updated for Zip+4 and Informal code updates
Updated the version for new gem build; last build failed to include informal
parsing
return nil for line1 interstections;  mostly  mshiltonj changes
Adds "cur"->"curve" street mapping
from perl 1.02 upgrade Fred Zellinger
Support to_s(:line1) for intersections
Merge pull request #15 from Redstapler/master

Support to_s(:line1) for intersections
Fork of StreetAddress From Derrek
Merge branch 'master' of https://github.com/Justin-Mitchell/street-address