add a fakebin that has no extension and needs an option to specify not to unpack
Added option to yaml file to specify that the downloaded program doesn't need to be unpacked
Use FileUtils install method instead of cp to make sure that permissions are set to executable
Reduced printing to stdout and capturing failed unpacking
Added teardown to test to make sure that the fake binaries are deleted after each run
Merge pull request #2 from cboursnell/master

Handle binaries with no file extension that don't need unpacking