Dockerfile: use go version 1.5.4-r0

[chriscool]

This error recently appeared when building the Dockerfile:

ERROR: unsatisfiable constraints:
go-1.5.4-r0:
breaks: world[go=1.5.3-r0]

It looks that now upstream requires go 1.5.4-r0 not 1.5.3-r0.

This should help fixing issue #2607.

License: MIT
Signed-off-by: Christian Couder chriscool@tuxfamily.org

[chriscool]

@whyrusleeping On my machine this is not a full fix because later in the build I get:

package github.com/jbenet/go-multiaddr-net/Godeps/_workspace/src/github.com/jbenet/go-multiaddr: cannot find package "github.com/jbenet/go-multiaddr-net/Godeps/_workspace/src/github.com/jbenet/go-multiaddr" in any of:
        /usr/lib/go/src/github.com/jbenet/go-multiaddr-net/Godeps/_workspace/src/github.com/jbenet/go-multiaddr (from $GOROOT)
        /go/src/github.com/jbenet/go-multiaddr-net/Godeps/_workspace/src/github.com/jbenet/go-multiaddr (from $GOPATH)

but you are probably more likely than me to fix this one.

[chriscool]

The Travis failures are all:

package github.com/jbenet/go-multiaddr-net/Godeps/_workspace/src/github.com/jbenet/go-multiaddr: cannot find package "github.com/jbenet/go-multiaddr-net/Godeps/_workspace/src/github.com/jbenet/go-multiaddr" in any of:
    /Users/travis/.gimme/versions/go1.5.2.darwin.amd64/src/github.com/jbenet/go-multiaddr-net/Godeps/_workspace/src/github.com/jbenet/go-multiaddr (from $GOROOT)
    /Users/travis/gopath/src/github.com/jbenet/go-multiaddr-net/Godeps/_workspace/src/github.com/jbenet/go-multiaddr (from $GOPATH)
make: *** [gx_upgrade] Error 1

[whyrusleeping]

@chriscool sorry about those failures, they should be good now. Thank you for fixing this!

[chriscool]

@whyrusleeping great that you fixed the gx related failures!