Prevent a crash when decoding a single value from the query container (…

…vapor#2163)

* Prevent a crash when decoding a single value from the query container

* Fix the code again after running the test, confirming a crash

* Update Tests/VaporTests/ApplicationTests.swift

Co-Authored-By: Jari (LotU) <[email protected]>

Co-authored-by: Jari (LotU) <[email protected]>

load env-specific dotenv file (vapor#2159)

allow log level to be set by env (vapor#2157)

authc fixes (vapor#2153)

Improve Validation Errors (vapor#2152)

* improve validation errors

* use 400 bad request for validation failures

Make ELG shareable (vapor#2137)

add swift-backtrace (vapor#2151)

req.query.decode fix + test res.content.decode added (vapor#2150)

* Application.run() no longer calls shutdown

* query content fix + res.content test helper

* fix testQueryGet test

Fix HTTP request decoder race (vapor#2132)

* fix HTTPServerRequestDecoder stream race

* rm version change

* downstreamIsReady

* write(_:to:)

4.0.0 beta 3 (vapor#2126)