language: go

go::
  - 1.0
  - 1.1
  - 1.2
  - 1.3
  - 1.4
  - tip
language: go

go::
  - 1.5
  - 1.6
  - tip
Add Go 1.5 and 1.6 to test matrix, remove 1.0-1.4
Add Go 1.5 and 1.6 to test matrix, remove 1.0-1.4
