Bumps go version to 1.10

[guidoiaquinti]

Description

Update go version to 1.10

Why

This closes #3879, closes #3987

Test

[..]
==> Building...
Number of parallel builds: 3

-->    darwin/amd64: github.com/hashicorp/consul
-->   solaris/amd64: github.com/hashicorp/consul
-->   windows/amd64: github.com/hashicorp/consul
-->       linux/386: github.com/hashicorp/consul
-->     freebsd/386: github.com/hashicorp/consul
-->   freebsd/amd64: github.com/hashicorp/consul
-->     freebsd/arm: github.com/hashicorp/consul
-->      darwin/386: github.com/hashicorp/consul
-->       linux/arm: github.com/hashicorp/consul
-->     linux/amd64: github.com/hashicorp/consul
-->     linux/arm64: github.com/hashicorp/consul
-->     windows/386: github.com/hashicorp/consul
==> Packaging...
--> freebsd_arm
  adding: consul (deflated 74%)
--> freebsd_amd64
  adding: consul (deflated 75%)
--> linux_386
  adding: consul (deflated 74%)
--> freebsd_386
  adding: consul (deflated 74%)
--> linux_arm
  adding: consul (deflated 74%)
--> darwin_amd64
  adding: consul (deflated 75%)
--> linux_arm64
  adding: consul (deflated 76%)
--> darwin_386
  adding: consul (deflated 74%)
--> windows_amd64
  adding: consul.exe (deflated 76%)
--> windows_386
  adding: consul.exe (deflated 74%)
--> linux_amd64
  adding: consul (deflated 75%)
--> solaris_amd64
  adding: consul (deflated 75%)

==> Results:
total 95312
-rwxr-xr-x  1 giaquinti  staff    47M Mar 27 17:42 consul