When testing all of the push functionality I ran into the fact that the
FTP upload code did not recognize that I had VAGRANT_CWD set, so it
wasn't finding the right files to upload.
This should make everything work properly relative to that location.
When the configured directory for FTP push has too many files, it will
generate an exception and fail due to a stack overflow. When this happens
just rescue out the exception and re-raise a custom error to provide
some context to the user on the actual problem.
This commit attempts to uniquely identify the temporary files and
directories that are created during test runs. Where it was a quick
fix, this commit also removes the temporary files and directories.
There are still a ton of temporary files due to calls to
.isolated_environment in the tests without an easy API an easy way
to provide a closer to that function.
