Apply try-with-resource in loading resources
Enhance KatakanaSpellCheck validator adding exception list
Add katakana spellcheck exception items
Make methods to throw Exception objects not just logging

- made methods to throw a excetpion object
- made methods to re-throw wrapping with RedPenException object if needed
Small fix
Merge pull request #252 from takahi-i/redpen-165

Enhance KatakanaSpellCheck validator adding exception list
Merge pull request #250 from takahi-i/apply-try-with-resource

Apply try-with-resource in loading resources
Fix build failure