Added Travis-CI check for bash files
Added Travis-CI check for bash files

Signed-off-by: Costin Galan <37a7631aab7f108e804cbb37d74b1e0d1cfd0026@cloudbasesolutions.com>

alexandrucoman/labs,alexcoman/labs,alexcoman/labs,c-square/python-lab,stefan-caraiman/python-lab,alexandrucoman/python-lab,alexcoman/labs,alexandrucoman/python-lab,alexcoman/labs,stefan-caraiman/python-lab,alexandrucoman/python-lab,c-square/python-lab,alexandrucoman/labs,stefan-caraiman/python-lab,stefan-caraiman/python-lab,alexandrucoman/labs,alexcoman/labs,stefan-caraiman/python-lab