Making sure we're using gocleanup.Exit() instead of os.Exit()
Correctly removing workdir on exit

as opposed to not cleaning it up
Cleaning up bob_helper
No longer eating the error on this particular function

never a good idea to eat errors
Error strings should not be capitalized
Adding actual building (1st attempt) and cleaning up logging a tad
Tweaking some minor bugs with building

and renaming our "Builderfile"
Making the repodir the dirname of the builderfile

That way, we can run the command from the top level (in order to make
the git commands work) and everything else will work too
[TRIVIAL] adjusting logging output format
Updating README to reflect new usage options

[ci skip]
Not running the build twice, duh
[TRIVIAL] adding some todos
Making output look much better
Oops, had some extra newlines
Refactoring main to make it a little cleaner
Update README.md
[TRIVIAL] some minor Makefile updates
Refactoring main to make it a little cleaner
[TRIVIAL] some minor refactoring
Using updated version of git2go

per https://github.com/libgit2/git2go/issues/87