We oneshot emerge without calculating dependencies a few things to solve
for possible dependency loops.
Python 3.5 also became stable, so don't need to do special things for
it.
Matched the uninstall with the install lines (no need for a full if
statement).
Change-Id: I7c5e546612ac47d659e73a46a52e34d39ca81949
There have been a few changes over the past few months, here we make the
following changes.
* change from backtrack=99 to complete-graph as a more correct flag
* make python version selection more in line with what gentoo supports
* set up python before stuff gets pip installed
* ensure we have the proper pip so we can install pip packages as root
* ensure we have the proper use flags for the disk formatting changes
* set DIB_RELEASE like other distros
* fix openssh-server element for gentoo
Change-Id: I17202de3016616ce34c8cbead7d0fb047a64e96b
