Merge pull request #96 from kess78/patch-1

Quote from i-MSCP Github (1.5.3)

Code

1. Merge pull request #96 from kess78/patch-1
3. Remove Package pin from MariaDB 10.2 on Stretch

Source: https://github.com/i-MSCP/imsc…6199c4c6d24b0fc8b253bf379