Profile Install Guide by default for only Ubuntu

We do not profile anymore for "ubuntu;debian" but separately for each,
let's fix the default setup for this as well.

Change-Id: I405f4bf3507797d465f6d9b91784af14a6ebd89c
Install Guide: Break overlong lines

Break overlong lines that overflow PDF output.

Change-Id: I5e95f7eb6a18ffe3c47794a1cf385abd7d87cfbd
Merge "Profile Install Guide by default for only Ubuntu"
Merge "Install Guide: Break overlong lines"