* Trim unneeded stuff from startup script
I was somehow convinced I'd already done that...
While we're there, explain why we need to siphon those specific vars
* Fix a stray eth0
-> $INTERFACE
* Be very very sure we have INTERFACE set in our env
re #3936
* Make getFirmwareVersion less fragile on Kobo
Not that we actually use it right now, but, still. :D
* Use the same syntax as the PRODUCT check
* Actually implement getProductId
Instead of a stray c/p ^^
* Properly identify the Rev2/Mark7 variants of existing devices
Namely, the H2O² and Aura SE
Not that the H2O²r2 support is still broken, this just allows us to
implement it cleanyl without breaking handling of the original H2O²
re #3925
* Tweak sleeps a bit around Kobo WiFi modules...
See if that jog things up (re #3936)
* Try harder not to suspend with WiFi on on Kobos
Because otherwise, things go boom. (re #3936)