Creating a -main with an integration option.

This is a checkpoint commit adding the vignette.core/-main
and an integration option for testing the thumbnailer using
the image samples.
first pass at travis.yml
only test against oraclejdk7, since that's the jdk we run
purposely fail test, ignore /logs
fix busted test
Running jar.
Merge branch 'master' into running-uberjar

Conflicts:
	project.clj
	src/vignette/media_types.clj
Merge pull request #7 from Wikia/travis

Travis CI
Merge pull request #8 from Wikia/running-uberjar

Running uberjar for the server
Fixing the unit tests.
Merge branch 'master' into add-s3-client

Conflicts:
	src/vignette/util/thumbnail.clj