Fix bug in JapaneseSymbol
redpen-198 End of Sentence Validator
Add exclamation mark and question mark as the end of sentence
Merge pull request #253 from takahi-i/redpen-198

redpen-198
remove unused class - cc.redpen.validator.ConfigurationLoader
implment toString
Merge pull request #254 from recruit-tech/implemnt-tostring

implment toString
Added Gitter badge
Merge pull request #255 from gitter-badger/gitter-badge

Add a Gitter badge to the README
Fix 157. Add coveralls and JaCoCo maven plugin.
Merge pull request #256 from hotchemi/add-coveralls-plugin

Fix #157. Add coveralls and JaCoCo maven plugin.
Remove mysterious gitter url parameters
externalize error messages. starting with SectionLengthValidator
refactor RedPenServer. Now RedPenServer isn't singleton.
ready to have multiple configuration in one single server instance.
Merge pull request #258 from recruit-tech/redpen-server-non-singleton

refactor RedPenServer. Now RedPenServer isn't singleton. ready to have multiple configuration in one single server instance.
Merge pull request #257 from recruit-tech/i18n-error

i18n-error
Replace ValidationError constructor to createValidationError method in section validators

- add equal, hashCode, and toString method
Merge pull request #260 from takahi-i/localization-section-validators

Replace ValidationError constructor to createValidationError method in s...
forcibly fallback to English resources when specifying non-Japanese locale
introduce ValidationError factory method with line number
Merge pull request #261 from recruit-tech/validation-error-with-line-number

forcibly fallback to English resources when specifying non-Japanese locale