add basic building and testing scripts

[pweil-]

Fixes: #5

@simon3z - not an expert at travis here so please tell me if there is a better way to do this or something is missing.

Adds basic building, gofmt verification, and testing scripts as well as a travis config file. I shamelessly stole most of this from the origin repo but tried to whittle it down to just what would be useful.

[pweil@localhost image-inspector]$ make clean verify test-unit
rm -rf _output Godeps/_workspace/pkg
hack/build-go.sh
hack/build-go.sh took 3 seconds
hack/verify-gofmt.sh
GOTEST_FLAGS="" hack/test-go.sh  
=== RUN   TestValidate
--- PASS: TestValidate (0.00s)
PASS
coverage: 6.2% of statements
ok      github.com/simon3z/image-inspector  1.007s
[DEBUG] Exit trap handler got return code 0
hack/test-go.sh succeeded after 8 seconds

[pweil@localhost image-inspector]$ ll _output/local/bin/local/image-inspector 
-rwxr-xr-x. 1 pweil pweil 9287808 Apr  6 12:16 _output/local/bin/local/image-inspector

[pweil-]

@enoodle @moolitayer PTAL

[pweil-]

I see now that there is a parent repo for this in openshift. I'll change the package paths to match.

@simon3z would you prefer that I submit PRs there?

[pweil-]

actually, it looks like your repo is upstream for openshift? Just let me know if this is wrong. Basically this script is expecting to find the path structure to look like whatever that upstream is just like we require in OpenShift

[simon3z]

@pweil- I suppose you took this from some other project. Is there any chance that you can slim it down to the minimum required to run the tests on travis? (the rest we will add incrementally, e.g. I wouldn't want any notification to go the openshift irc channel at the moment, etc.).

Also you can move this PR to the https://github.com/openshift/image-inspector repository. We'll start to work there.

[pweil-]

@simon3z - yep, no problem. I'll take a look at it again next week and see what the bare minimum for running the tests is.

[enoodle]

@pweil- @simon3z we should move this to openshift/image-inspector , its would be really nice to have these

[simon3z]

@enoodle please do