Restructed variables in promote.sh; added commit

Signed-off-by: James Ketrenos <james.p.ketrenos@intel.com>
Added pull of branch from GitHub if doesn't exist locally

Signed-off-by: James Ketrenos <james.p.ketrenos@intel.com>
Switching to use git stash

Signed-off-by: James Ketrenos <james.p.ketrenos@intel.com>
Added --manual-edit mode

Signed-off-by: James Ketrenos <james.p.ketrenos@intel.com>
Improved usage note

Signed-off-by: James Ketrenos <james.p.ketrenos@intel.com>
Automatic commit with bump of stable to 39.1.3.10 for tizen-x86

Signed-off-by: James Ketrenos <james.p.ketrenos@intel.com>