fix(#24): modify repo of linux-cosmic and add commands to shell scripts

[wan-nan]

The original Linux cosmic repo git://kernel.ubuntu.com/ubuntu/ubuntu-cosmic.git is no longer available. This submission modifies it to a new source https://git.launchpad.net/ ~Ubuntu kernel/ubuntu/+source/Linux/+git/Cosmic

(cherry picked from commit bfb0ef296986a5b9adc3784ba85b361ef85c3763) this commit fixes #24

[wan-nan]

description of commit 45922cf3381839acc36daa1edaf618a7c5edcac8 depmod: has the module load order recalculated #!/bin/bash: specifies that the Bash interpreter should be used to run the script