Rangers: Raised max range from 2000 -> 50000
The source trace limitation no longer exists, so our limit is no longer needed
Fixes #491
E2 Remote Updater: PP friends/admins can now view/halt chips
Previously, Remote Updater only worked if wire_expression2_friendwrite was 1.
The convar is still required to permit others to edit your E2s.
Addresses #443