Copy Go projects to the right directory

Fix #1124

Before this commit, Go projects were copied to
$GOPATH/owner_name/name/name.
Add retry to git clone
cd to the project directory for Go projects

Running tests from the $GOPATH has the side effect of running tests for
all third party libs that are downloaded into the $GOPATH as well.
Stub out bash in specs

The Sauce Connect addon runs bash, which makes the test hang for a
second or two.