6.x.x support and few additional fixes#34

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alphacc wants to merge 5 commits intoknes1:masterfrom

Commits on Jan 21, 2019

Add documentation for 6.x.x
Thomas Oulevey
committed
Use gopkg.in/olivere/elastic.v5
Thomas Oulevey
committed
_all is deprecated, list indices with CatIndices()
Thomas Oulevey
committed
Move cli from codegangsta to urfave
Thomas Oulevey
committed
Fix codegangsta to urfave in configuration
Thomas Oulevey
committed