See above! I strongly suspect that's your issue (git checkout master can only have performed that exact command; etotheipi's master branch is still on 93.3, whereas the goatpig master branch is at 94.1)
does goatpig have 0.94.1 git tagged?:
Ubuntu:~/BitcoinArmory$ git tag -v v0.94.1
error: 811798a9282d216e0a450fe342d8a4671fee01d3: cannot verify a non-tag object of type commit.
error: could not verify the tag 'v0.94.1'
It isn't signed.
He does. I suspect there's some minor error in the version string you're supplying, but that's only a guess. I don't make use of that particular git command, so can't help you specifically with it from off the top of my head unfortunately.
ok, got it.
now how do i delete Armory's copy of the blockchain?
Go to the armory data directory and delete everything in the "databases" folder.