Fix error with longitude calculations (did not convert to radians) and also fix bounding box calculation problem (did not use minimum latitude to maximize longitudinal bounds)
Update specs
Merge pull request #19 from brentan/master

Fix/update geo code
Add Brentan Alexander to contributors
Bump version for geo fixes
Merge remote-tracking branch 'duwanis/master'
Use is_a? when checking class in convert_date_or_time

The previous version was not converting Rails
ActiveSupport::TimeWithZone objects for me.