Generate db for Ruby2.1.0
Add Pathname#write since 2.1.0
Add Pathname#binwrite since 2.1.0
Merge pull request #65 from niku/add-pathname-write-methods-since-2.1.0

Add Pathname#write and Pathname#binwrite since 2.1.0
Merge pull request #64 from niku/generate-db-ruby2.1.0

Generate db for Ruby2.1.0