Remove Node 0.12 from Travis because ESLint 3.0 do not support it.
Remove Node 0.12 from Travis because ESLint 3.0 do not support it.

sapegin/react-styleguidist,sapegin/react-styleguidist,styleguidist/react-styleguidist,styleguidist/react-styleguidist,styleguidist/react-styleguidist,bluetidepro/react-styleguidist