Remove hackery around keysize

[stephenmathieson]

Sophia has pushed an update which removes the need to size_t keysize = strlen(key) + 1. We should now be able to remove all of that ugly logic now :)

[jwerle]

awesome, I'll fix this now

[stephenmathieson]

an issue I can foresee: it's likely data stored by libsphia will no longer work if we make this change. :/

[jwerle]

Hmm, so should we close this issue ?

[stephenmathieson]

nah, i don't think so. let's not get stuck on an old (broken) version of sophia.

we haven't released a version of this yet, so nobody should really be effected.

[jwerle]

What should we knock out to get the first release out ?