Description of problem:
When source code's format is 'git://' to create a docker build app, met error, and build failed.
        "source": {
          "type": "Git",
          "git": {
            "uri": "git://github.com/openshift/ruby-hello-world.git"
          }
        },


Version-Release number of selected component (if applicable):
oc v3.0.1.900-185-g2f7757a
kubernetes v1.1.0-alpha.0-1605-g44c91b1

How reproducible:
Always

Steps to Reproduce:
1. Create a project;
2. Use command to create a docker build:
   `oc  new-app application-template-dockerbuild.json`
3. Check build status and build log;

Actual results:
The build always failed, the logs like this:
[zhouy@zhouy Work]$ oc get build
NAME                  TYPE      STATUS    POD
ruby-sample-build-1   Docker    Failed    ruby-sample-build-1-build
[zhouy@zhouy Work]$ oc build-logs ruby-sample-build-1
F0909 05:52:10.542511       1 builder.go:47] Build error: dial tcp: missing port in address github.com

Expected results:
The build should successfully.

Additional info:
When use origin env , the docker build can successfully.