Chat: Fix join channel's route render

(cherry picked from commit 7cb600d)

Update pills.

Update interface builds.

vere version bump (0.8.1 -> 0.8.2).

Merge pull request urbit#1420 from urbit/v0.8.1

update urbit version number and pills

Merge pull request urbit#1389 from urbit/philip/insert-event

add -I to inject event

Merge pull request urbit#1376 from urbit/chat-link

fix chat links

Merge pull request urbit#1365 from urbit/v0.8.0.rc

v0.8.0 Release

Add phony testnet target to Makefile.

Merge pull request urbit#1291 from urbit/ccr-printf-fixes

cleans up some printf edge-cases on cc-release