Summon logic + bug fix, and reverts medibot change

- I was a moron and failed to notice that "tricordrazine" actually does
treat oxyloss, and as such, change is reverted.

- Summoning a bot now has a higher command priority, bots will no longer
seek targets while under a summon, increasing their chances of making it
to the target without being distracted.

- Access downloaded from a user no longer overwrites the bot's own
levels, but simply adds it to the bot's access list.