Panic in the example to print commits

[TripleDogDare]

Trying to run the example code seems to give an error.
It appears that the remote.upInfo isn't getting set.
This can be resolved by inserting a Connect call on the default remote.
This can also be resolved by modifying the Pull PullDefault code.
Options are in referenced pull requests.

FYI: I'm not sure how to run tests locally (they are failing) so I hope your CI works...

$ cd $GOPATH
$ go get -u github.com/src-d/go-git
$ go install github.com/src-d/go-git/examples/basic
$ ./bin/basic 'https://github.com/src-d/go-git'
Retrieving "https://github.com/src-d/go-git" ...
panic: runtime error: invalid memory address or nil pointer dereference
[signal 0xb code=0x1 addr=0x0 pc=0x464005]

goroutine 1 [running]:
gopkg.in/src-d/go-git%2ev3.(*Remote).DefaultBranch(0xc20803a140, 0x0, 0x0)
    /home/tripledogdare/go/src/gopkg.in/src-d/go-git.v3/remote.go:81 +0x35
gopkg.in/src-d/go-git%2ev3.(*Repository).PullDefault(0xc20803d530, 0x0, 0x0)
    /home/tripledogdare/go/src/gopkg.in/src-d/go-git.v3/repository.go:101 +0x1a6
main.main()
    /home/tripledogdare/go/src/github.com/src-d/go-git/examples/basic/main.go:18 +0x1aa

goroutine 2 [runnable]:
runtime.forcegchelper()
    /home/tripledogdare/repositories/go/src/runtime/proc.go:90
runtime.goexit()
    /home/tripledogdare/repositories/go/src/runtime/asm_amd64.s:2232 +0x1

goroutine 3 [runnable]:
runtime.bgsweep()
    /home/tripledogdare/repositories/go/src/runtime/mgc0.go:82
runtime.goexit()
    /home/tripledogdare/repositories/go/src/runtime/asm_amd64.s:2232 +0x1

goroutine 4 [runnable]:
runtime.runfinq()
    /home/tripledogdare/repositories/go/src/runtime/malloc.go:712
runtime.goexit()
    /home/tripledogdare/repositories/go/src/runtime/asm_amd64.s:2232 +0x1

[mcuadros]

Thanks