Some packages in d-streamon are installed using apt

[ferrarimarco]

Prerequisites

• Put an X between the brackets on this line if you have done all of the following:
  • Checked that your issue isn't already filed: https://github.com/scissor-project/open-scissor/issues

Description

apt should not be used in scripts. Use apt-get.

References

https://askubuntu.com/questions/445384/what-is-the-difference-between-apt-and-apt-get