Added Travis YAML file for Travis CI.
Added mongoDB dependency.
Updated Mongo driver to fix CI tests.
Fixing bug on which conflicted properties with only one value would fail.
Ignoring test that needs database initialized.
Adding Travis status to README
Merge branch 'master' of git://github.com/openplanets/c3po into pr

Conflicts:
	README.md
	c3po-core/src/main/java/com/petpet/c3po/adaptor/fits/FITSAdaptor.java