- Rename SessionState to State to avoid stutter.
- Simplified option validation to use a wrapper function for base64 secrets.
- Removed authenticates grpc code.
- Abstracted logic to load and validate a user's authenticate session.
- Removed instances of url.Parse in favor of urlutil's version.
- proxy: replaces grpc refresh logic with forced deadline advancement.
- internal/sessions: remove rest store; parse authorize header as part of session store.
- proxy: refactor request signer
- sessions: remove extend deadline (fixes#294)
- remove AuthenticateInternalAddr
- remove AuthenticateInternalAddrString
- omit type tag.Key from declaration of vars TagKey* it will be inferred
from the right-hand side
- remove compatibility package xerrors
- use cloned http.DefaultTransport as base transport
