Create a wrapper with exception handling to call self.server.runCommand() safely.
Again, add exception handling to load_template() and save_template()
(Bitbake rev: cb07a027d3366ed30b0f7e5e85d08c6fda4eb5b9)
Signed-off-by: Shane Wang <shane.wang@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>