Our standard git_sync

Signed-off-by: Michael Welter <michael@cetoncorp.com>
Adding a git submodule sync

Signed-off-by: Michael Welter <michael@cetoncorp.com>
Updated git_sync to work from any folder within a git tree

Signed-off-by: Michael Welter <michael@cetoncorp.com>
Updated Shebang to be more portable

Signed-off-by: Michael Welter <michael@cetoncorp.com>