Avoid nil attributes error

Add kong 1.0 support

Remove badges

Improve error management

Update readme

Update specs

bugfix post/update api in kong 0.14.0

Remove Excon version number dependency (#25)

Update README. skip ci

Release 0.3.1 (#22)

add methods to kong api base attributes (#21)

Use consumer id to retrieve auth keys and tokens (#19)

Fixing syntax highlight for ruby code on README (#18)

Release v0.3.0 (#16)

Update API example