Including tag_opts in the spec builderfile

Unfortunately, this test case still doesn't cover the actual bug, since
that code path is only encountered during real container builds.  At the
moment, the tests don't include real container builds because those are
not supported on Travis.  Putting a note in the TODO file.
Making sure we're actually replacing the right arg when tagging

The tag command has a placeholder "`<IMG>`" value for the image id,
since that is not available until after the build is completed.
After the build command is run, the placeholder is then replaced by the
actual image id...as of this commit.
Adding the queued-command-runner for push commands
[OOPS] had arg order switched in a Sprintf() call
Removing some unused code

probably left over from when other functions existed in this file
Updating toml decoder version

And bumping go version in the `Godeps.json` (we were already using
1.2.1, just forgot to update the file)
We should not be exiting from our worker function

since that will cause all of the workers to exit instead of marking the
job as failed (which is the correct/anticipated action)
Using `--tap` output format for bats when CI is set
Merge pull request #30 from modcloth/adding-qcr

Adding qcr plus making tag opts work