[LIBCLOUD-569] Removing the overloaded constructor from the rimuhosting base class.

Rimu uses gzip'ed responses but the overloaded constructor was not calling the decompress function resuuulting in a MalformedResponseError. All functionality in overloaded constructor already existed in the base clase.

Closes #303

Signed-off-by: Tomaz Muraus <tomaz@apache.org>
Update CA_CERTS_PATH to look for updated Homebrew location on MacOS X.

Closes #309

Signed-off-by: Tomaz Muraus <tomaz@apache.org>