Remove old linter config

Upgrade dependencies to latest

pinyin requires Node v4 so time for a const-ification

Add test case for lovell#17, update deps, test OS X

Release v1.4.0

Release v1.3.0

Release v1.2.0

Version bumps to support Node v4

Add @ZheFeng to contributors

Version bump

Simplify language-detection

Assumes slug will not contain mixed languages

Version bumps