Remove trailing whitespace
Add some color in order to emphasis the test FAILURE
Extract helper method for volume linking.

Makes this more readable.
Extract volume bind, creation and external methods.

Make Start() slightly more readable.
Merge pull request #3029 from pnasrat/container-refactoring

Container refactoring
Merge pull request #3000 from creack/improve_make_sh_test

Improve make sh test