Add Address func. Issue #2.
指摘を受けての修正。メソッド名の修正など
Merge pull request #9 from miyohide/summary_add_address_func

Add Address func. Issue #2.
s/prefectural/prefecture/
Add changelog
Tweak readme and gemspec description
Extract classes
Add Gimei::Name and refactor
Refactor Gimei::Address
Refactor by delegate and alias_method
Add Gimei::Address#hiragana and Gimei::Address#katakana
Enable access to Name and Address from Gimei object
Delegate Gimei.male and Gimei.female to Gimei::Name
Add and refactor specs
Fix raise error due to order of `require`
Tweak README
Add Gimei#prefecture, Gimei#city, Gimei#town
Add a badge of code climate
Fix contributor of Gimei.male and Gimei.female