* Update debian-ubuntu installation

Major rework of debian.md, minor updates to a configuration.md and upgrading.md.

* updated docs

Updated per Torkel's comments

* Update debian.md

Added wget to common properties install command

* Update docs/sources/installation/debian.md

Co-Authored-By: Dan Cech <dcech@grafana.com>

* Update docs/sources/installation/debian.md

Co-Authored-By: Dan Cech <dcech@grafana.com>

* Update docs/sources/installation/debian.md

Co-Authored-By: Dan Cech <dcech@grafana.com>

* Update docs/sources/installation/debian.md

Co-Authored-By: Dan Cech <dcech@grafana.com>

* Update docs/sources/installation/debian.md

Co-Authored-By: Dan Cech <dcech@grafana.com>

* Update docs/sources/installation/debian.md

Co-Authored-By: Dan Cech <dcech@grafana.com>

* Update docs/sources/installation/debian.md

Co-Authored-By: Dan Cech <dcech@grafana.com>

* Apply suggestions from code review

Co-Authored-By: Dan Cech <dcech@grafana.com>

* Update upgrading.md

* Update upgrading.md

* Update debian.md

Added ARM link