Update unidecode dep import path

[Peter Kieltyka]

Hello,

Please update to latest the import path for unidecode to: github.com/rainycape/unidecode. See: https://github.com/rainycape/unidecode

[Jeffery Utter]

+1 it seems that gopkgs is broken/down/gone , preventing the installation of this package.

[Dobrosław Żybort]

Done, thank you for information.